ETH Price: $2,544.81 (-0.35%)

Transaction Decoder

Block:
21087387 at Oct-31-2024 06:22:35 PM +UTC
Transaction Fee:
0.000801410071299846 ETH $2.04
Gas Used:
60,667 Gas / 13.209983538 Gwei

Account State Difference:

  Address   Before After State Difference Code
0x0F86c06c...40B8aD135
0.22203943667198358 Eth
Nonce: 1279
0.221238026600683734 Eth
Nonce: 1280
0.000801410071299846
0x1DE87490...F292DD69A
2.282474223210827256 Eth2.282556608996827256 Eth0.000082385786

Execution Trace

ERC721GeneralSequence.safeTransferFrom( from=0x0F86c06cB70AEF5242A3E871dd5632b40B8aD135, to=0xf43925ede9a1db0DCC316eDdBac47bD56b84a6bE, tokenId=436 )
  • ERC721GeneralSequence.safeTransferFrom( from=0x0F86c06cB70AEF5242A3E871dd5632b40B8aD135, to=0xf43925ede9a1db0DCC316eDdBac47bD56b84a6bE, tokenId=436 )
    • Observability.emitTransfer( from=0x0F86c06cB70AEF5242A3E871dd5632b40B8aD135, to=0xf43925ede9a1db0DCC316eDdBac47bD56b84a6bE, tokenId=436 )
      File 1 of 3: ERC721GeneralSequence
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
      pragma solidity ^0.8.0;
      import "../utils/ContextUpgradeable.sol";
      import "../proxy/utils/Initializable.sol";
      /**
       * @dev Contract module which provides a basic access control mechanism, where
       * there is an account (an owner) that can be granted exclusive access to
       * specific functions.
       *
       * By default, the owner account will be the one that deploys the contract. This
       * can later be changed with {transferOwnership}.
       *
       * This module is used through inheritance. It will make available the modifier
       * `onlyOwner`, which can be applied to your functions to restrict their use to
       * the owner.
       */
      abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
          address private _owner;
          event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
          /**
           * @dev Initializes the contract setting the deployer as the initial owner.
           */
          function __Ownable_init() internal onlyInitializing {
              __Ownable_init_unchained();
          }
          function __Ownable_init_unchained() internal onlyInitializing {
              _transferOwnership(_msgSender());
          }
          /**
           * @dev Throws if called by any account other than the owner.
           */
          modifier onlyOwner() {
              _checkOwner();
              _;
          }
          /**
           * @dev Returns the address of the current owner.
           */
          function owner() public view virtual returns (address) {
              return _owner;
          }
          /**
           * @dev Throws if the sender is not the owner.
           */
          function _checkOwner() internal view virtual {
              require(owner() == _msgSender(), "Ownable: caller is not the owner");
          }
          /**
           * @dev Leaves the contract without owner. It will not be possible to call
           * `onlyOwner` functions. Can only be called by the current owner.
           *
           * NOTE: Renouncing ownership will leave the contract without an owner,
           * thereby disabling any functionality that is only available to the owner.
           */
          function renounceOwnership() public virtual onlyOwner {
              _transferOwnership(address(0));
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Can only be called by the current owner.
           */
          function transferOwnership(address newOwner) public virtual onlyOwner {
              require(newOwner != address(0), "Ownable: new owner is the zero address");
              _transferOwnership(newOwner);
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Internal function without access restriction.
           */
          function _transferOwnership(address newOwner) internal virtual {
              address oldOwner = _owner;
              _owner = newOwner;
              emit OwnershipTransferred(oldOwner, newOwner);
          }
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[49] private __gap;
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
      pragma solidity ^0.8.2;
      import "../../utils/AddressUpgradeable.sol";
      /**
       * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
       * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
       * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
       * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
       *
       * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
       * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
       * case an upgrade adds a module that needs to be initialized.
       *
       * For example:
       *
       * [.hljs-theme-light.nopadding]
       * ```solidity
       * contract MyToken is ERC20Upgradeable {
       *     function initialize() initializer public {
       *         __ERC20_init("MyToken", "MTK");
       *     }
       * }
       *
       * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
       *     function initializeV2() reinitializer(2) public {
       *         __ERC20Permit_init("MyToken");
       *     }
       * }
       * ```
       *
       * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
       * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
       *
       * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
       * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
       *
       * [CAUTION]
       * ====
       * Avoid leaving a contract uninitialized.
       *
       * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
       * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
       * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
       *
       * [.hljs-theme-light.nopadding]
       * ```
       * /// @custom:oz-upgrades-unsafe-allow constructor
       * constructor() {
       *     _disableInitializers();
       * }
       * ```
       * ====
       */
      abstract contract Initializable {
          /**
           * @dev Indicates that the contract has been initialized.
           * @custom:oz-retyped-from bool
           */
          uint8 private _initialized;
          /**
           * @dev Indicates that the contract is in the process of being initialized.
           */
          bool private _initializing;
          /**
           * @dev Triggered when the contract has been initialized or reinitialized.
           */
          event Initialized(uint8 version);
          /**
           * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
           * `onlyInitializing` functions can be used to initialize parent contracts.
           *
           * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
           * constructor.
           *
           * Emits an {Initialized} event.
           */
          modifier initializer() {
              bool isTopLevelCall = !_initializing;
              require(
                  (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
                  "Initializable: contract is already initialized"
              );
              _initialized = 1;
              if (isTopLevelCall) {
                  _initializing = true;
              }
              _;
              if (isTopLevelCall) {
                  _initializing = false;
                  emit Initialized(1);
              }
          }
          /**
           * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
           * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
           * used to initialize parent contracts.
           *
           * A reinitializer may be used after the original initialization step. This is essential to configure modules that
           * are added through upgrades and that require initialization.
           *
           * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
           * cannot be nested. If one is invoked in the context of another, execution will revert.
           *
           * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
           * a contract, executing them in the right order is up to the developer or operator.
           *
           * WARNING: setting the version to 255 will prevent any future reinitialization.
           *
           * Emits an {Initialized} event.
           */
          modifier reinitializer(uint8 version) {
              require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
              _initialized = version;
              _initializing = true;
              _;
              _initializing = false;
              emit Initialized(version);
          }
          /**
           * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
           * {initializer} and {reinitializer} modifiers, directly or indirectly.
           */
          modifier onlyInitializing() {
              require(_initializing, "Initializable: contract is not initializing");
              _;
          }
          /**
           * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
           * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
           * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
           * through proxies.
           *
           * Emits an {Initialized} event the first time it is successfully executed.
           */
          function _disableInitializers() internal virtual {
              require(!_initializing, "Initializable: contract is initializing");
              if (_initialized != type(uint8).max) {
                  _initialized = type(uint8).max;
                  emit Initialized(type(uint8).max);
              }
          }
          /**
           * @dev Returns the highest version that has been initialized. See {reinitializer}.
           */
          function _getInitializedVersion() internal view returns (uint8) {
              return _initialized;
          }
          /**
           * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
           */
          function _isInitializing() internal view returns (bool) {
              return _initializing;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
      pragma solidity ^0.8.0;
      import "../proxy/utils/Initializable.sol";
      /**
       * @dev Contract module that helps prevent reentrant calls to a function.
       *
       * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
       * available, which can be applied to functions to make sure there are no nested
       * (reentrant) calls to them.
       *
       * Note that because there is a single `nonReentrant` guard, functions marked as
       * `nonReentrant` may not call one another. This can be worked around by making
       * those functions `private`, and then adding `external` `nonReentrant` entry
       * points to them.
       *
       * TIP: If you would like to learn more about reentrancy and alternative ways
       * to protect against it, check out our blog post
       * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
       */
      abstract contract ReentrancyGuardUpgradeable is Initializable {
          // Booleans are more expensive than uint256 or any type that takes up a full
          // word because each write operation emits an extra SLOAD to first read the
          // slot's contents, replace the bits taken up by the boolean, and then write
          // back. This is the compiler's defense against contract upgrades and
          // pointer aliasing, and it cannot be disabled.
          // The values being non-zero value makes deployment a bit more expensive,
          // but in exchange the refund on every call to nonReentrant will be lower in
          // amount. Since refunds are capped to a percentage of the total
          // transaction's gas, it is best to keep them low in cases like this one, to
          // increase the likelihood of the full refund coming into effect.
          uint256 private constant _NOT_ENTERED = 1;
          uint256 private constant _ENTERED = 2;
          uint256 private _status;
          function __ReentrancyGuard_init() internal onlyInitializing {
              __ReentrancyGuard_init_unchained();
          }
          function __ReentrancyGuard_init_unchained() internal onlyInitializing {
              _status = _NOT_ENTERED;
          }
          /**
           * @dev Prevents a contract from calling itself, directly or indirectly.
           * Calling a `nonReentrant` function from another `nonReentrant`
           * function is not supported. It is possible to prevent this from happening
           * by making the `nonReentrant` function external, and making it call a
           * `private` function that does the actual work.
           */
          modifier nonReentrant() {
              _nonReentrantBefore();
              _;
              _nonReentrantAfter();
          }
          function _nonReentrantBefore() private {
              // On the first call to nonReentrant, _status will be _NOT_ENTERED
              require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
              // Any calls to nonReentrant after this point will fail
              _status = _ENTERED;
          }
          function _nonReentrantAfter() private {
              // By storing the original value once again, a refund is triggered (see
              // https://eips.ethereum.org/EIPS/eip-2200)
              _status = _NOT_ENTERED;
          }
          /**
           * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
           * `nonReentrant` function in the call stack.
           */
          function _reentrancyGuardEntered() internal view returns (bool) {
              return _status == _ENTERED;
          }
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[49] private __gap;
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
      pragma solidity ^0.8.1;
      /**
       * @dev Collection of functions related to the address type
       */
      library AddressUpgradeable {
          /**
           * @dev Returns true if `account` is a contract.
           *
           * [IMPORTANT]
           * ====
           * It is unsafe to assume that an address for which this function returns
           * false is an externally-owned account (EOA) and not a contract.
           *
           * Among others, `isContract` will return false for the following
           * types of addresses:
           *
           *  - an externally-owned account
           *  - a contract in construction
           *  - an address where a contract will be created
           *  - an address where a contract lived, but was destroyed
           *
           * Furthermore, `isContract` will also return true if the target contract within
           * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
           * which only has an effect at the end of a transaction.
           * ====
           *
           * [IMPORTANT]
           * ====
           * You shouldn't rely on `isContract` to protect against flash loan attacks!
           *
           * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
           * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
           * constructor.
           * ====
           */
          function isContract(address account) internal view returns (bool) {
              // This method relies on extcodesize/address.code.length, which returns 0
              // for contracts in construction, since the code is only stored at the end
              // of the constructor execution.
              return account.code.length > 0;
          }
          /**
           * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
           * `recipient`, forwarding all available gas and reverting on errors.
           *
           * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
           * of certain opcodes, possibly making contracts go over the 2300 gas limit
           * imposed by `transfer`, making them unable to receive funds via
           * `transfer`. {sendValue} removes this limitation.
           *
           * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
           *
           * IMPORTANT: because control is transferred to `recipient`, care must be
           * taken to not create reentrancy vulnerabilities. Consider using
           * {ReentrancyGuard} or the
           * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
           */
          function sendValue(address payable recipient, uint256 amount) internal {
              require(address(this).balance >= amount, "Address: insufficient balance");
              (bool success, ) = recipient.call{value: amount}("");
              require(success, "Address: unable to send value, recipient may have reverted");
          }
          /**
           * @dev Performs a Solidity function call using a low level `call`. A
           * plain `call` is an unsafe replacement for a function call: use this
           * function instead.
           *
           * If `target` reverts with a revert reason, it is bubbled up by this
           * function (like regular Solidity function calls).
           *
           * Returns the raw returned data. To convert to the expected return value,
           * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
           *
           * Requirements:
           *
           * - `target` must be a contract.
           * - calling `target` with `data` must not revert.
           *
           * _Available since v3.1._
           */
          function functionCall(address target, bytes memory data) internal returns (bytes memory) {
              return functionCallWithValue(target, data, 0, "Address: low-level call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
           * `errorMessage` as a fallback revert reason when `target` reverts.
           *
           * _Available since v3.1._
           */
          function functionCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal returns (bytes memory) {
              return functionCallWithValue(target, data, 0, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but also transferring `value` wei to `target`.
           *
           * Requirements:
           *
           * - the calling contract must have an ETH balance of at least `value`.
           * - the called Solidity function must be `payable`.
           *
           * _Available since v3.1._
           */
          function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
              return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
          }
          /**
           * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
           * with `errorMessage` as a fallback revert reason when `target` reverts.
           *
           * _Available since v3.1._
           */
          function functionCallWithValue(
              address target,
              bytes memory data,
              uint256 value,
              string memory errorMessage
          ) internal returns (bytes memory) {
              require(address(this).balance >= value, "Address: insufficient balance for call");
              (bool success, bytes memory returndata) = target.call{value: value}(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but performing a static call.
           *
           * _Available since v3.3._
           */
          function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
              return functionStaticCall(target, data, "Address: low-level static call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
           * but performing a static call.
           *
           * _Available since v3.3._
           */
          function functionStaticCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal view returns (bytes memory) {
              (bool success, bytes memory returndata) = target.staticcall(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but performing a delegate call.
           *
           * _Available since v3.4._
           */
          function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
              return functionDelegateCall(target, data, "Address: low-level delegate call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
           * but performing a delegate call.
           *
           * _Available since v3.4._
           */
          function functionDelegateCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal returns (bytes memory) {
              (bool success, bytes memory returndata) = target.delegatecall(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
           * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
           *
           * _Available since v4.8._
           */
          function verifyCallResultFromTarget(
              address target,
              bool success,
              bytes memory returndata,
              string memory errorMessage
          ) internal view returns (bytes memory) {
              if (success) {
                  if (returndata.length == 0) {
                      // only check isContract if the call was successful and the return data is empty
                      // otherwise we already know that it was a contract
                      require(isContract(target), "Address: call to non-contract");
                  }
                  return returndata;
              } else {
                  _revert(returndata, errorMessage);
              }
          }
          /**
           * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
           * revert reason or using the provided one.
           *
           * _Available since v4.3._
           */
          function verifyCallResult(
              bool success,
              bytes memory returndata,
              string memory errorMessage
          ) internal pure returns (bytes memory) {
              if (success) {
                  return returndata;
              } else {
                  _revert(returndata, errorMessage);
              }
          }
          function _revert(bytes memory returndata, string memory errorMessage) private pure {
              // Look for revert reason and bubble it up if present
              if (returndata.length > 0) {
                  // The easiest way to bubble the revert reason is using memory via assembly
                  /// @solidity memory-safe-assembly
                  assembly {
                      let returndata_size := mload(returndata)
                      revert(add(32, returndata), returndata_size)
                  }
              } else {
                  revert(errorMessage);
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
      pragma solidity ^0.8.0;
      import "../proxy/utils/Initializable.sol";
      /**
       * @dev Provides information about the current execution context, including the
       * sender of the transaction and its data. While these are generally available
       * via msg.sender and msg.data, they should not be accessed in such a direct
       * manner, since when dealing with meta-transactions the account sending and
       * paying for execution may not be the actual sender (as far as an application
       * is concerned).
       *
       * This contract is only required for intermediate, library-like contracts.
       */
      abstract contract ContextUpgradeable is Initializable {
          function __Context_init() internal onlyInitializing {
          }
          function __Context_init_unchained() internal onlyInitializing {
          }
          function _msgSender() internal view virtual returns (address) {
              return msg.sender;
          }
          function _msgData() internal view virtual returns (bytes calldata) {
              return msg.data;
          }
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[50] private __gap;
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev Standard math utilities missing in the Solidity language.
       */
      library MathUpgradeable {
          enum Rounding {
              Down, // Toward negative infinity
              Up, // Toward infinity
              Zero // Toward zero
          }
          /**
           * @dev Returns the largest of two numbers.
           */
          function max(uint256 a, uint256 b) internal pure returns (uint256) {
              return a > b ? a : b;
          }
          /**
           * @dev Returns the smallest of two numbers.
           */
          function min(uint256 a, uint256 b) internal pure returns (uint256) {
              return a < b ? a : b;
          }
          /**
           * @dev Returns the average of two numbers. The result is rounded towards
           * zero.
           */
          function average(uint256 a, uint256 b) internal pure returns (uint256) {
              // (a + b) / 2 can overflow.
              return (a & b) + (a ^ b) / 2;
          }
          /**
           * @dev Returns the ceiling of the division of two numbers.
           *
           * This differs from standard division with `/` in that it rounds up instead
           * of rounding down.
           */
          function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
              // (a + b - 1) / b can overflow on addition, so we distribute.
              return a == 0 ? 0 : (a - 1) / b + 1;
          }
          /**
           * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
           * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
           * with further edits by Uniswap Labs also under MIT license.
           */
          function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
              unchecked {
                  // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
                  // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
                  // variables such that product = prod1 * 2^256 + prod0.
                  uint256 prod0; // Least significant 256 bits of the product
                  uint256 prod1; // Most significant 256 bits of the product
                  assembly {
                      let mm := mulmod(x, y, not(0))
                      prod0 := mul(x, y)
                      prod1 := sub(sub(mm, prod0), lt(mm, prod0))
                  }
                  // Handle non-overflow cases, 256 by 256 division.
                  if (prod1 == 0) {
                      // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                      // The surrounding unchecked block does not change this fact.
                      // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                      return prod0 / denominator;
                  }
                  // Make sure the result is less than 2^256. Also prevents denominator == 0.
                  require(denominator > prod1, "Math: mulDiv overflow");
                  ///////////////////////////////////////////////
                  // 512 by 256 division.
                  ///////////////////////////////////////////////
                  // Make division exact by subtracting the remainder from [prod1 prod0].
                  uint256 remainder;
                  assembly {
                      // Compute remainder using mulmod.
                      remainder := mulmod(x, y, denominator)
                      // Subtract 256 bit number from 512 bit number.
                      prod1 := sub(prod1, gt(remainder, prod0))
                      prod0 := sub(prod0, remainder)
                  }
                  // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
                  // See https://cs.stackexchange.com/q/138556/92363.
                  // Does not overflow because the denominator cannot be zero at this stage in the function.
                  uint256 twos = denominator & (~denominator + 1);
                  assembly {
                      // Divide denominator by twos.
                      denominator := div(denominator, twos)
                      // Divide [prod1 prod0] by twos.
                      prod0 := div(prod0, twos)
                      // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                      twos := add(div(sub(0, twos), twos), 1)
                  }
                  // Shift in bits from prod1 into prod0.
                  prod0 |= prod1 * twos;
                  // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
                  // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
                  // four bits. That is, denominator * inv = 1 mod 2^4.
                  uint256 inverse = (3 * denominator) ^ 2;
                  // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
                  // in modular arithmetic, doubling the correct bits in each step.
                  inverse *= 2 - denominator * inverse; // inverse mod 2^8
                  inverse *= 2 - denominator * inverse; // inverse mod 2^16
                  inverse *= 2 - denominator * inverse; // inverse mod 2^32
                  inverse *= 2 - denominator * inverse; // inverse mod 2^64
                  inverse *= 2 - denominator * inverse; // inverse mod 2^128
                  inverse *= 2 - denominator * inverse; // inverse mod 2^256
                  // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
                  // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
                  // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
                  // is no longer required.
                  result = prod0 * inverse;
                  return result;
              }
          }
          /**
           * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
           */
          function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
              uint256 result = mulDiv(x, y, denominator);
              if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
                  result += 1;
              }
              return result;
          }
          /**
           * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
           *
           * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
           */
          function sqrt(uint256 a) internal pure returns (uint256) {
              if (a == 0) {
                  return 0;
              }
              // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
              //
              // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
              // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
              //
              // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
              // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
              // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
              //
              // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
              uint256 result = 1 << (log2(a) >> 1);
              // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
              // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
              // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
              // into the expected uint128 result.
              unchecked {
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  return min(result, a / result);
              }
          }
          /**
           * @notice Calculates sqrt(a), following the selected rounding direction.
           */
          function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
              unchecked {
                  uint256 result = sqrt(a);
                  return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
              }
          }
          /**
           * @dev Return the log in base 2, rounded down, of a positive value.
           * Returns 0 if given 0.
           */
          function log2(uint256 value) internal pure returns (uint256) {
              uint256 result = 0;
              unchecked {
                  if (value >> 128 > 0) {
                      value >>= 128;
                      result += 128;
                  }
                  if (value >> 64 > 0) {
                      value >>= 64;
                      result += 64;
                  }
                  if (value >> 32 > 0) {
                      value >>= 32;
                      result += 32;
                  }
                  if (value >> 16 > 0) {
                      value >>= 16;
                      result += 16;
                  }
                  if (value >> 8 > 0) {
                      value >>= 8;
                      result += 8;
                  }
                  if (value >> 4 > 0) {
                      value >>= 4;
                      result += 4;
                  }
                  if (value >> 2 > 0) {
                      value >>= 2;
                      result += 2;
                  }
                  if (value >> 1 > 0) {
                      result += 1;
                  }
              }
              return result;
          }
          /**
           * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
           * Returns 0 if given 0.
           */
          function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
              unchecked {
                  uint256 result = log2(value);
                  return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
              }
          }
          /**
           * @dev Return the log in base 10, rounded down, of a positive value.
           * Returns 0 if given 0.
           */
          function log10(uint256 value) internal pure returns (uint256) {
              uint256 result = 0;
              unchecked {
                  if (value >= 10 ** 64) {
                      value /= 10 ** 64;
                      result += 64;
                  }
                  if (value >= 10 ** 32) {
                      value /= 10 ** 32;
                      result += 32;
                  }
                  if (value >= 10 ** 16) {
                      value /= 10 ** 16;
                      result += 16;
                  }
                  if (value >= 10 ** 8) {
                      value /= 10 ** 8;
                      result += 8;
                  }
                  if (value >= 10 ** 4) {
                      value /= 10 ** 4;
                      result += 4;
                  }
                  if (value >= 10 ** 2) {
                      value /= 10 ** 2;
                      result += 2;
                  }
                  if (value >= 10 ** 1) {
                      result += 1;
                  }
              }
              return result;
          }
          /**
           * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
           * Returns 0 if given 0.
           */
          function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
              unchecked {
                  uint256 result = log10(value);
                  return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
              }
          }
          /**
           * @dev Return the log in base 256, rounded down, of a positive value.
           * Returns 0 if given 0.
           *
           * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
           */
          function log256(uint256 value) internal pure returns (uint256) {
              uint256 result = 0;
              unchecked {
                  if (value >> 128 > 0) {
                      value >>= 128;
                      result += 16;
                  }
                  if (value >> 64 > 0) {
                      value >>= 64;
                      result += 8;
                  }
                  if (value >> 32 > 0) {
                      value >>= 32;
                      result += 4;
                  }
                  if (value >> 16 > 0) {
                      value >>= 16;
                      result += 2;
                  }
                  if (value >> 8 > 0) {
                      result += 1;
                  }
              }
              return result;
          }
          /**
           * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
           * Returns 0 if given 0.
           */
          function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
              unchecked {
                  uint256 result = log256(value);
                  return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev Standard signed math utilities missing in the Solidity language.
       */
      library SignedMathUpgradeable {
          /**
           * @dev Returns the largest of two signed numbers.
           */
          function max(int256 a, int256 b) internal pure returns (int256) {
              return a > b ? a : b;
          }
          /**
           * @dev Returns the smallest of two signed numbers.
           */
          function min(int256 a, int256 b) internal pure returns (int256) {
              return a < b ? a : b;
          }
          /**
           * @dev Returns the average of two signed numbers without overflow.
           * The result is rounded towards zero.
           */
          function average(int256 a, int256 b) internal pure returns (int256) {
              // Formula from the book "Hacker's Delight"
              int256 x = (a & b) + ((a ^ b) >> 1);
              return x + (int256(uint256(x) >> 255) & (a ^ b));
          }
          /**
           * @dev Returns the absolute unsigned value of a signed value.
           */
          function abs(int256 n) internal pure returns (uint256) {
              unchecked {
                  // must be unchecked in order to support `n = type(int256).min`
                  return uint256(n >= 0 ? n : -n);
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
      pragma solidity ^0.8.0;
      import "./math/MathUpgradeable.sol";
      import "./math/SignedMathUpgradeable.sol";
      /**
       * @dev String operations.
       */
      library StringsUpgradeable {
          bytes16 private constant _SYMBOLS = "0123456789abcdef";
          uint8 private constant _ADDRESS_LENGTH = 20;
          /**
           * @dev Converts a `uint256` to its ASCII `string` decimal representation.
           */
          function toString(uint256 value) internal pure returns (string memory) {
              unchecked {
                  uint256 length = MathUpgradeable.log10(value) + 1;
                  string memory buffer = new string(length);
                  uint256 ptr;
                  /// @solidity memory-safe-assembly
                  assembly {
                      ptr := add(buffer, add(32, length))
                  }
                  while (true) {
                      ptr--;
                      /// @solidity memory-safe-assembly
                      assembly {
                          mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                      }
                      value /= 10;
                      if (value == 0) break;
                  }
                  return buffer;
              }
          }
          /**
           * @dev Converts a `int256` to its ASCII `string` decimal representation.
           */
          function toString(int256 value) internal pure returns (string memory) {
              return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMathUpgradeable.abs(value))));
          }
          /**
           * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
           */
          function toHexString(uint256 value) internal pure returns (string memory) {
              unchecked {
                  return toHexString(value, MathUpgradeable.log256(value) + 1);
              }
          }
          /**
           * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
           */
          function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
              bytes memory buffer = new bytes(2 * length + 2);
              buffer[0] = "0";
              buffer[1] = "x";
              for (uint256 i = 2 * length + 1; i > 1; --i) {
                  buffer[i] = _SYMBOLS[value & 0xf];
                  value >>= 4;
              }
              require(value == 0, "Strings: hex length insufficient");
              return string(buffer);
          }
          /**
           * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
           */
          function toHexString(address addr) internal pure returns (string memory) {
              return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
          }
          /**
           * @dev Returns true if the two strings are equal.
           */
          function equal(string memory a, string memory b) internal pure returns (bool) {
              return keccak256(bytes(a)) == keccak256(bytes(b));
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev Provides information about the current execution context, including the
       * sender of the transaction and its data. While these are generally available
       * via msg.sender and msg.data, they should not be accessed in such a direct
       * manner, since when dealing with meta-transactions the account sending and
       * paying for execution may not be the actual sender (as far as an application
       * is concerned).
       *
       * This contract is only required for intermediate, library-like contracts.
       */
      abstract contract Context {
          function _msgSender() internal view virtual returns (address) {
              return msg.sender;
          }
          function _msgData() internal view virtual returns (bytes calldata) {
              return msg.data;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (utils/structs/EnumerableSet.sol)
      // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.
      pragma solidity ^0.8.0;
      /**
       * @dev Library for managing
       * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
       * types.
       *
       * Sets have the following properties:
       *
       * - Elements are added, removed, and checked for existence in constant time
       * (O(1)).
       * - Elements are enumerated in O(n). No guarantees are made on the ordering.
       *
       * ```solidity
       * contract Example {
       *     // Add the library methods
       *     using EnumerableSet for EnumerableSet.AddressSet;
       *
       *     // Declare a set state variable
       *     EnumerableSet.AddressSet private mySet;
       * }
       * ```
       *
       * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
       * and `uint256` (`UintSet`) are supported.
       *
       * [WARNING]
       * ====
       * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
       * unusable.
       * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
       *
       * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
       * array of EnumerableSet.
       * ====
       */
      library EnumerableSet {
          // To implement this library for multiple types with as little code
          // repetition as possible, we write it in terms of a generic Set type with
          // bytes32 values.
          // The Set implementation uses private functions, and user-facing
          // implementations (such as AddressSet) are just wrappers around the
          // underlying Set.
          // This means that we can only create new EnumerableSets for types that fit
          // in bytes32.
          struct Set {
              // Storage of set values
              bytes32[] _values;
              // Position of the value in the `values` array, plus 1 because index 0
              // means a value is not in the set.
              mapping(bytes32 => uint256) _indexes;
          }
          /**
           * @dev Add a value to a set. O(1).
           *
           * Returns true if the value was added to the set, that is if it was not
           * already present.
           */
          function _add(Set storage set, bytes32 value) private returns (bool) {
              if (!_contains(set, value)) {
                  set._values.push(value);
                  // The value is stored at length-1, but we add 1 to all indexes
                  // and use 0 as a sentinel value
                  set._indexes[value] = set._values.length;
                  return true;
              } else {
                  return false;
              }
          }
          /**
           * @dev Removes a value from a set. O(1).
           *
           * Returns true if the value was removed from the set, that is if it was
           * present.
           */
          function _remove(Set storage set, bytes32 value) private returns (bool) {
              // We read and store the value's index to prevent multiple reads from the same storage slot
              uint256 valueIndex = set._indexes[value];
              if (valueIndex != 0) {
                  // Equivalent to contains(set, value)
                  // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
                  // the array, and then remove the last element (sometimes called as 'swap and pop').
                  // This modifies the order of the array, as noted in {at}.
                  uint256 toDeleteIndex = valueIndex - 1;
                  uint256 lastIndex = set._values.length - 1;
                  if (lastIndex != toDeleteIndex) {
                      bytes32 lastValue = set._values[lastIndex];
                      // Move the last value to the index where the value to delete is
                      set._values[toDeleteIndex] = lastValue;
                      // Update the index for the moved value
                      set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
                  }
                  // Delete the slot where the moved value was stored
                  set._values.pop();
                  // Delete the index for the deleted slot
                  delete set._indexes[value];
                  return true;
              } else {
                  return false;
              }
          }
          /**
           * @dev Returns true if the value is in the set. O(1).
           */
          function _contains(Set storage set, bytes32 value) private view returns (bool) {
              return set._indexes[value] != 0;
          }
          /**
           * @dev Returns the number of values on the set. O(1).
           */
          function _length(Set storage set) private view returns (uint256) {
              return set._values.length;
          }
          /**
           * @dev Returns the value stored at position `index` in the set. O(1).
           *
           * Note that there are no guarantees on the ordering of values inside the
           * array, and it may change when more values are added or removed.
           *
           * Requirements:
           *
           * - `index` must be strictly less than {length}.
           */
          function _at(Set storage set, uint256 index) private view returns (bytes32) {
              return set._values[index];
          }
          /**
           * @dev Return the entire set in an array
           *
           * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
           * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
           * this function has an unbounded cost, and using it as part of a state-changing function may render the function
           * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
           */
          function _values(Set storage set) private view returns (bytes32[] memory) {
              return set._values;
          }
          // Bytes32Set
          struct Bytes32Set {
              Set _inner;
          }
          /**
           * @dev Add a value to a set. O(1).
           *
           * Returns true if the value was added to the set, that is if it was not
           * already present.
           */
          function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
              return _add(set._inner, value);
          }
          /**
           * @dev Removes a value from a set. O(1).
           *
           * Returns true if the value was removed from the set, that is if it was
           * present.
           */
          function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
              return _remove(set._inner, value);
          }
          /**
           * @dev Returns true if the value is in the set. O(1).
           */
          function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
              return _contains(set._inner, value);
          }
          /**
           * @dev Returns the number of values in the set. O(1).
           */
          function length(Bytes32Set storage set) internal view returns (uint256) {
              return _length(set._inner);
          }
          /**
           * @dev Returns the value stored at position `index` in the set. O(1).
           *
           * Note that there are no guarantees on the ordering of values inside the
           * array, and it may change when more values are added or removed.
           *
           * Requirements:
           *
           * - `index` must be strictly less than {length}.
           */
          function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
              return _at(set._inner, index);
          }
          /**
           * @dev Return the entire set in an array
           *
           * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
           * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
           * this function has an unbounded cost, and using it as part of a state-changing function may render the function
           * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
           */
          function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
              bytes32[] memory store = _values(set._inner);
              bytes32[] memory result;
              /// @solidity memory-safe-assembly
              assembly {
                  result := store
              }
              return result;
          }
          // AddressSet
          struct AddressSet {
              Set _inner;
          }
          /**
           * @dev Add a value to a set. O(1).
           *
           * Returns true if the value was added to the set, that is if it was not
           * already present.
           */
          function add(AddressSet storage set, address value) internal returns (bool) {
              return _add(set._inner, bytes32(uint256(uint160(value))));
          }
          /**
           * @dev Removes a value from a set. O(1).
           *
           * Returns true if the value was removed from the set, that is if it was
           * present.
           */
          function remove(AddressSet storage set, address value) internal returns (bool) {
              return _remove(set._inner, bytes32(uint256(uint160(value))));
          }
          /**
           * @dev Returns true if the value is in the set. O(1).
           */
          function contains(AddressSet storage set, address value) internal view returns (bool) {
              return _contains(set._inner, bytes32(uint256(uint160(value))));
          }
          /**
           * @dev Returns the number of values in the set. O(1).
           */
          function length(AddressSet storage set) internal view returns (uint256) {
              return _length(set._inner);
          }
          /**
           * @dev Returns the value stored at position `index` in the set. O(1).
           *
           * Note that there are no guarantees on the ordering of values inside the
           * array, and it may change when more values are added or removed.
           *
           * Requirements:
           *
           * - `index` must be strictly less than {length}.
           */
          function at(AddressSet storage set, uint256 index) internal view returns (address) {
              return address(uint160(uint256(_at(set._inner, index))));
          }
          /**
           * @dev Return the entire set in an array
           *
           * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
           * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
           * this function has an unbounded cost, and using it as part of a state-changing function may render the function
           * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
           */
          function values(AddressSet storage set) internal view returns (address[] memory) {
              bytes32[] memory store = _values(set._inner);
              address[] memory result;
              /// @solidity memory-safe-assembly
              assembly {
                  result := store
              }
              return result;
          }
          // UintSet
          struct UintSet {
              Set _inner;
          }
          /**
           * @dev Add a value to a set. O(1).
           *
           * Returns true if the value was added to the set, that is if it was not
           * already present.
           */
          function add(UintSet storage set, uint256 value) internal returns (bool) {
              return _add(set._inner, bytes32(value));
          }
          /**
           * @dev Removes a value from a set. O(1).
           *
           * Returns true if the value was removed from the set, that is if it was
           * present.
           */
          function remove(UintSet storage set, uint256 value) internal returns (bool) {
              return _remove(set._inner, bytes32(value));
          }
          /**
           * @dev Returns true if the value is in the set. O(1).
           */
          function contains(UintSet storage set, uint256 value) internal view returns (bool) {
              return _contains(set._inner, bytes32(value));
          }
          /**
           * @dev Returns the number of values in the set. O(1).
           */
          function length(UintSet storage set) internal view returns (uint256) {
              return _length(set._inner);
          }
          /**
           * @dev Returns the value stored at position `index` in the set. O(1).
           *
           * Note that there are no guarantees on the ordering of values inside the
           * array, and it may change when more values are added or removed.
           *
           * Requirements:
           *
           * - `index` must be strictly less than {length}.
           */
          function at(UintSet storage set, uint256 index) internal view returns (uint256) {
              return uint256(_at(set._inner, index));
          }
          /**
           * @dev Return the entire set in an array
           *
           * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
           * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
           * this function has an unbounded cost, and using it as part of a state-changing function may render the function
           * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
           */
          function values(UintSet storage set) internal view returns (uint256[] memory) {
              bytes32[] memory store = _values(set._inner);
              uint256[] memory result;
              /// @solidity memory-safe-assembly
              assembly {
                  result := store
              }
              return result;
          }
      }
      // SPDX-License-Identifier: MIT
      pragma solidity 0.8.10;
      /* solhint-disable */
      library ERC721AStorage {
          // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).
          struct TokenApprovalRef {
              address value;
          }
          struct Layout {
              // =============================================================
              //                            STORAGE
              // =============================================================
              // The next token ID to be minted.
              uint256 _currentIndex;
              // The number of tokens burned.
              uint256 _burnCounter;
              // Token name
              string _name;
              // Token symbol
              string _symbol;
              // Mapping from token ID to ownership details
              // An empty struct value does not necessarily mean the token is unowned.
              // See {_packedOwnershipOf} implementation for details.
              //
              // Bits Layout:
              // - [0..159]   `addr`
              // - [160..223] `startTimestamp`
              // - [224]      `burned`
              // - [225]      `nextInitialized`
              // - [232..255] `extraData`
              mapping(uint256 => uint256) _packedOwnerships;
              // Mapping owner address to address data.
              //
              // Bits Layout:
              // - [0..63]    `balance`
              // - [64..127]  `numberMinted`
              // - [128..191] `numberBurned`
              // - [192..255] `aux`
              mapping(address => uint256) _packedAddressData;
              // Mapping from token ID to approved address.
              mapping(uint256 => ERC721AStorage.TokenApprovalRef) _tokenApprovals;
              // Mapping from owner to operator approvals
              mapping(address => mapping(address => bool)) _operatorApprovals;
          }
          bytes32 internal constant STORAGE_SLOT = keccak256("ERC721A.contracts.storage.ERC721A");
          function layout() internal pure returns (Layout storage l) {
              bytes32 slot = STORAGE_SLOT;
              assembly {
                  l.slot := slot
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // ERC721A Contracts v4.2.3
      // Creator: Chiru Labs
      pragma solidity 0.8.10;
      import "./IERC721AUpgradeable.sol";
      import { ERC721AStorage } from "./ERC721AStorage.sol";
      import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
      import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
      /* solhint-disable */
      /**
       * @dev Interface of ERC721 token receiver.
       */
      interface ERC721A__IERC721ReceiverUpgradeable {
          function onERC721Received(
              address operator,
              address from,
              uint256 tokenId,
              bytes calldata data
          ) external returns (bytes4);
      }
      /**
       * @title ERC721A
       * @author Chiru Labs, modified by [email protected]
       *
       * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
       * Non-Fungible Token Standard, including the Metadata extension.
       * Optimized for lower gas during batch mints.
       *
       * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
       * starting from `_startTokenId()`.
       *
       * Assumptions:
       *
       * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
       * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
       */
      contract ERC721AUpgradeable is Initializable, IERC721AUpgradeable, ContextUpgradeable {
          using ERC721AStorage for ERC721AStorage.Layout;
          // =============================================================
          //                           CONSTANTS
          // =============================================================
          // Mask of an entry in packed address data.
          uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;
          // The bit position of `numberMinted` in packed address data.
          uint256 private constant _BITPOS_NUMBER_MINTED = 64;
          // The bit position of `numberBurned` in packed address data.
          uint256 private constant _BITPOS_NUMBER_BURNED = 128;
          // The bit position of `aux` in packed address data.
          uint256 private constant _BITPOS_AUX = 192;
          // Mask of all 256 bits in packed address data except the 64 bits for `aux`.
          uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;
          // The bit position of `startTimestamp` in packed ownership.
          uint256 private constant _BITPOS_START_TIMESTAMP = 160;
          // The bit mask of the `burned` bit in packed ownership.
          uint256 private constant _BITMASK_BURNED = 1 << 224;
          // The bit position of the `nextInitialized` bit in packed ownership.
          uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;
          // The bit mask of the `nextInitialized` bit in packed ownership.
          uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;
          // The bit position of `extraData` in packed ownership.
          uint256 private constant _BITPOS_EXTRA_DATA = 232;
          // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.
          uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;
          // The mask of the lower 160 bits for addresses.
          uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;
          // The maximum `quantity` that can be minted with {_mintERC2309}.
          // This limit is to prevent overflows on the address data entries.
          // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
          // is required to cause an overflow, which is unrealistic.
          uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;
          // The `Transfer` event signature is given by:
          // `keccak256(bytes("Transfer(address,address,uint256)"))`.
          bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
              0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
          // =============================================================
          //                          CONSTRUCTOR
          // =============================================================
          function __ERC721A_init(string memory name_, string memory symbol_) internal onlyInitializing {
              __ERC721A_init_unchained(name_, symbol_);
          }
          function __ERC721A_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
              ERC721AStorage.layout()._name = name_;
              ERC721AStorage.layout()._symbol = symbol_;
              ERC721AStorage.layout()._currentIndex = _startTokenId();
          }
          // =============================================================
          //                   TOKEN COUNTING OPERATIONS
          // =============================================================
          /**
           * @dev Returns the starting token ID.
           * To change the starting token ID, please override this function.
           */
          function _startTokenId() internal view virtual returns (uint256) {
              return 1;
          }
          /**
           * @dev Returns the next token ID to be minted.
           */
          function _nextTokenId() internal view virtual returns (uint256) {
              return ERC721AStorage.layout()._currentIndex;
          }
          /**
           * @dev Returns the total number of tokens in existence.
           * Burned tokens will reduce the count.
           * To get the total number of tokens minted, please see {_totalMinted}.
           */
          function totalSupply() public view virtual override returns (uint256) {
              // Counter underflow is impossible as _burnCounter cannot be incremented
              // more than `_currentIndex - _startTokenId()` times.
              unchecked {
                  return ERC721AStorage.layout()._currentIndex - ERC721AStorage.layout()._burnCounter - _startTokenId();
              }
          }
          /**
           * @dev Returns the total amount of tokens minted in the contract.
           */
          function _totalMinted() internal view virtual returns (uint256) {
              // Counter underflow is impossible as `_currentIndex` does not decrement,
              // and it is initialized to `_startTokenId()`.
              unchecked {
                  return ERC721AStorage.layout()._currentIndex - _startTokenId();
              }
          }
          /**
           * @dev Returns the total number of tokens burned.
           */
          function _totalBurned() internal view virtual returns (uint256) {
              return ERC721AStorage.layout()._burnCounter;
          }
          // =============================================================
          //                    ADDRESS DATA OPERATIONS
          // =============================================================
          /**
           * @dev Returns the number of tokens in `owner`'s account.
           */
          function balanceOf(address owner) public view virtual override returns (uint256) {
              if (owner == address(0)) _revert(BalanceQueryForZeroAddress.selector);
              return ERC721AStorage.layout()._packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
          }
          /**
           * Returns the number of tokens minted by `owner`.
           */
          function _numberMinted(address owner) internal view returns (uint256) {
              return
                  (ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;
          }
          /**
           * Returns the number of tokens burned by or on behalf of `owner`.
           */
          function _numberBurned(address owner) internal view returns (uint256) {
              return
                  (ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;
          }
          /**
           * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
           */
          function _getAux(address owner) internal view returns (uint64) {
              return uint64(ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_AUX);
          }
          /**
           * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
           * If there are multiple variables, please pack them into a uint64.
           */
          function _setAux(address owner, uint64 aux) internal virtual {
              uint256 packed = ERC721AStorage.layout()._packedAddressData[owner];
              uint256 auxCasted;
              // Cast `aux` with assembly to avoid redundant masking.
              assembly {
                  auxCasted := aux
              }
              packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);
              ERC721AStorage.layout()._packedAddressData[owner] = packed;
          }
          // =============================================================
          //                            IERC165
          // =============================================================
          /**
           * @dev Returns true if this contract implements the interface defined by
           * `interfaceId`. See the corresponding
           * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
           * to learn more about how these ids are created.
           *
           * This function call must use less than 30000 gas.
           */
          function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
              // The interface IDs are constants representing the first 4 bytes
              // of the XOR of all function selectors in the interface.
              // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
              // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)
              return
                  interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
                  interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
                  interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
          }
          // =============================================================
          //                        IERC721Metadata
          // =============================================================
          /**
           * @dev Returns the token collection name.
           */
          function name() public view virtual override returns (string memory) {
              return ERC721AStorage.layout()._name;
          }
          /**
           * @dev Returns the token collection symbol.
           */
          function symbol() public view virtual override returns (string memory) {
              return ERC721AStorage.layout()._symbol;
          }
          /**
           * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
           */
          function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
              if (!_exists(tokenId)) _revert(URIQueryForNonexistentToken.selector);
              string memory baseURI = _baseURI();
              return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, "/", _toString(tokenId))) : "";
          }
          /**
           * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
           * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
           * by default, it can be overridden in child contracts.
           */
          function _baseURI() internal view virtual returns (string memory) {
              return "";
          }
          // =============================================================
          //                     OWNERSHIPS OPERATIONS
          // =============================================================
          /**
           * @dev Returns the owner of the `tokenId` token.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function ownerOf(uint256 tokenId) public view virtual override returns (address) {
              return address(uint160(_packedOwnershipOf(tokenId)));
          }
          /**
           * @dev Added by Highlight to facilitate updating of name and symbol
           */
          function _setContractMetadata(string calldata newName, string calldata newSymbol) internal {
              ERC721AStorage.layout()._name = newName;
              ERC721AStorage.layout()._symbol = newSymbol;
          }
          /**
           * @dev Gas spent here starts off proportional to the maximum mint batch size.
           * It gradually moves to O(1) as tokens get transferred around over time.
           */
          function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {
              return _unpackedOwnership(_packedOwnershipOf(tokenId));
          }
          /**
           * @dev Returns the unpacked `TokenOwnership` struct at `index`.
           */
          function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {
              return _unpackedOwnership(ERC721AStorage.layout()._packedOwnerships[index]);
          }
          /**
           * @dev Returns whether the ownership slot at `index` is initialized.
           * An uninitialized slot does not necessarily mean that the slot has no owner.
           */
          function _ownershipIsInitialized(uint256 index) internal view virtual returns (bool) {
              return ERC721AStorage.layout()._packedOwnerships[index] != 0;
          }
          /**
           * @dev Initializes the ownership slot minted at `index` for efficiency purposes.
           */
          function _initializeOwnershipAt(uint256 index) internal virtual {
              if (ERC721AStorage.layout()._packedOwnerships[index] == 0) {
                  ERC721AStorage.layout()._packedOwnerships[index] = _packedOwnershipOf(index);
              }
          }
          /**
           * Returns the packed ownership data of `tokenId`.
           */
          function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) {
              if (_startTokenId() <= tokenId) {
                  packed = ERC721AStorage.layout()._packedOwnerships[tokenId];
                  // If the data at the starting slot does not exist, start the scan.
                  if (packed == 0) {
                      if (tokenId >= ERC721AStorage.layout()._currentIndex) _revert(OwnerQueryForNonexistentToken.selector);
                      // Invariant:
                      // There will always be an initialized ownership slot
                      // (i.e. `ownership.addr != address(0) && ownership.burned == false`)
                      // before an unintialized ownership slot
                      // (i.e. `ownership.addr == address(0) && ownership.burned == false`)
                      // Hence, `tokenId` will not underflow.
                      //
                      // We can directly compare the packed value.
                      // If the address is zero, packed will be zero.
                      for (;;) {
                          unchecked {
                              packed = ERC721AStorage.layout()._packedOwnerships[--tokenId];
                          }
                          if (packed == 0) continue;
                          if (packed & _BITMASK_BURNED == 0) return packed;
                          // Otherwise, the token is burned, and we must revert.
                          // This handles the case of batch burned tokens, where only the burned bit
                          // of the starting slot is set, and remaining slots are left uninitialized.
                          _revert(OwnerQueryForNonexistentToken.selector);
                      }
                  }
                  // Otherwise, the data exists and we can skip the scan.
                  // This is possible because we have already achieved the target condition.
                  // This saves 2143 gas on transfers of initialized tokens.
                  // If the token is not burned, return `packed`. Otherwise, revert.
                  if (packed & _BITMASK_BURNED == 0) return packed;
              }
              _revert(OwnerQueryForNonexistentToken.selector);
          }
          /**
           * @dev Returns the unpacked `TokenOwnership` struct from `packed`.
           */
          function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
              ownership.addr = address(uint160(packed));
              ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
              ownership.burned = packed & _BITMASK_BURNED != 0;
              ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
          }
          /**
           * @dev Packs ownership data into a single uint256.
           */
          function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {
              assembly {
                  // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
                  owner := and(owner, _BITMASK_ADDRESS)
                  // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.
                  result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))
              }
          }
          /**
           * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.
           */
          function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {
              // For branchless setting of the `nextInitialized` flag.
              assembly {
                  // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.
                  result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
              }
          }
          // =============================================================
          //                      APPROVAL OPERATIONS
          // =============================================================
          /**
           * @dev Gives permission to `to` to transfer `tokenId` token to another account. See {ERC721A-_approve}.
           *
           * Requirements:
           *
           * - The caller must own the token or be an approved operator.
           */
          function approve(address to, uint256 tokenId) public payable virtual override {
              _approve(to, tokenId, true);
          }
          /**
           * @dev Returns the account approved for `tokenId` token.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function getApproved(uint256 tokenId) public view virtual override returns (address) {
              if (!_exists(tokenId)) _revert(ApprovalQueryForNonexistentToken.selector);
              return ERC721AStorage.layout()._tokenApprovals[tokenId].value;
          }
          /**
           * @dev Approve or remove `operator` as an operator for the caller.
           * Operators can call {transferFrom} or {safeTransferFrom}
           * for any token owned by the caller.
           *
           * Requirements:
           *
           * - The `operator` cannot be the caller.
           *
           * Emits an {ApprovalForAll} event.
           */
          function setApprovalForAll(address operator, bool approved) public virtual override {
              ERC721AStorage.layout()._operatorApprovals[_msgSenderERC721A()][operator] = approved;
              emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
          }
          /**
           * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
           *
           * See {setApprovalForAll}.
           */
          function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
              return ERC721AStorage.layout()._operatorApprovals[owner][operator];
          }
          /**
           * @dev Returns whether `tokenId` exists.
           *
           * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
           *
           * Tokens start existing when they are minted. See {_mint}.
           */
          function _exists(uint256 tokenId) internal view virtual returns (bool result) {
              if (_startTokenId() <= tokenId) {
                  if (tokenId < ERC721AStorage.layout()._currentIndex) {
                      uint256 packed;
                      while ((packed = ERC721AStorage.layout()._packedOwnerships[tokenId]) == 0) --tokenId;
                      result = packed & _BITMASK_BURNED == 0;
                  }
              }
          }
          /**
           * @dev Returns whether `spender` is allowed to manage `tokenId`.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
              address owner = ownerOf(tokenId);
              return (isApprovedForAll(owner, spender) || _isSenderApprovedOrOwner(getApproved(tokenId), owner, spender));
          }
          /**
           * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.
           */
          function _isSenderApprovedOrOwner(
              address approvedAddress,
              address owner,
              address msgSender
          ) private pure returns (bool result) {
              assembly {
                  // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
                  owner := and(owner, _BITMASK_ADDRESS)
                  // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.
                  msgSender := and(msgSender, _BITMASK_ADDRESS)
                  // `msgSender == owner || msgSender == approvedAddress`.
                  result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
              }
          }
          /**
           * @dev Returns the storage slot and value for the approved address of `tokenId`.
           */
          function _getApprovedSlotAndAddress(
              uint256 tokenId
          ) private view returns (uint256 approvedAddressSlot, address approvedAddress) {
              ERC721AStorage.TokenApprovalRef storage tokenApproval = ERC721AStorage.layout()._tokenApprovals[tokenId];
              // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.
              assembly {
                  approvedAddressSlot := tokenApproval.slot
                  approvedAddress := sload(approvedAddressSlot)
              }
          }
          // =============================================================
          //                      TRANSFER OPERATIONS
          // =============================================================
          /**
           * @dev Transfers `tokenId` from `from` to `to`.
           *
           * Requirements:
           *
           * - `from` cannot be the zero address.
           * - `to` cannot be the zero address.
           * - `tokenId` token must be owned by `from`.
           * - If the caller is not `from`, it must be approved to move this token
           * by either {approve} or {setApprovalForAll}.
           *
           * Emits a {Transfer} event.
           */
          function transferFrom(address from, address to, uint256 tokenId) public payable virtual override {
              uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
              // Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean.
              from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS));
              if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector);
              (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
              // The nested ifs save around 20+ gas over a compound boolean condition.
              if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
                  if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);
              // Clear approvals from the previous owner.
              assembly {
                  if approvedAddress {
                      // This is equivalent to `delete _tokenApprovals[tokenId]`.
                      sstore(approvedAddressSlot, 0)
                  }
              }
              // Underflow of the sender's balance is impossible because we check for
              // ownership above and the recipient's balance can't realistically overflow.
              // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
              unchecked {
                  // We can directly increment and decrement the balances.
                  --ERC721AStorage.layout()._packedAddressData[from]; // Updates: `balance -= 1`.
                  ++ERC721AStorage.layout()._packedAddressData[to]; // Updates: `balance += 1`.
                  // Updates:
                  // - `address` to the next owner.
                  // - `startTimestamp` to the timestamp of transfering.
                  // - `burned` to `false`.
                  // - `nextInitialized` to `true`.
                  ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData(
                      to,
                      _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)
                  );
                  // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
                  if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                      uint256 nextTokenId = tokenId + 1;
                      // If the next slot's address is zero and not burned (i.e. packed value is zero).
                      if (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) {
                          // If the next slot is within bounds.
                          if (nextTokenId != ERC721AStorage.layout()._currentIndex) {
                              // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                              ERC721AStorage.layout()._packedOwnerships[nextTokenId] = prevOwnershipPacked;
                          }
                      }
                  }
              }
              // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
              uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
              assembly {
                  // Emit the `Transfer` event.
                  log4(
                      0, // Start of data (0, since no data).
                      0, // End of data (0, since no data).
                      _TRANSFER_EVENT_SIGNATURE, // Signature.
                      from, // `from`.
                      toMasked, // `to`.
                      tokenId // `tokenId`.
                  )
              }
              if (toMasked == 0) _revert(TransferToZeroAddress.selector);
              _afterTokenTransfers(from, to, tokenId);
          }
          /**
           * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
           */
          function safeTransferFrom(address from, address to, uint256 tokenId) public payable virtual override {
              safeTransferFrom(from, to, tokenId, "");
          }
          /**
           * @dev Safely transfers `tokenId` token from `from` to `to`.
           *
           * Requirements:
           *
           * - `from` cannot be the zero address.
           * - `to` cannot be the zero address.
           * - `tokenId` token must exist and be owned by `from`.
           * - If the caller is not `from`, it must be approved to move this token
           * by either {approve} or {setApprovalForAll}.
           * - If `to` refers to a smart contract, it must implement
           * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
           *
           * Emits a {Transfer} event.
           */
          function safeTransferFrom(
              address from,
              address to,
              uint256 tokenId,
              bytes memory _data
          ) public payable virtual override {
              transferFrom(from, to, tokenId);
              if (to.code.length != 0)
                  if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                      _revert(TransferToNonERC721ReceiverImplementer.selector);
                  }
          }
          /**
           * @dev Hook that is called after a set of serially-ordered token IDs
           * have been transferred. This includes minting.
           * And also called after one token has been burned.
           *
           * `startTokenId` - the first token ID to be transferred.
           * `quantity` - the amount to be transferred.
           *
           * Calling conditions:
           *
           * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
           * transferred to `to`.
           * - When `from` is zero, `tokenId` has been minted for `to`.
           * - When `to` is zero, `tokenId` has been burned by `from`.
           * - `from` and `to` are never both zero.
           */
          function _afterTokenTransfers(address from, address to, uint256 startTokenId) internal virtual {}
          /**
           * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
           *
           * `from` - Previous owner of the given token ID.
           * `to` - Target address that will receive the token.
           * `tokenId` - Token ID to be transferred.
           * `_data` - Optional data to send along with the call.
           *
           * Returns whether the call correctly returned the expected magic value.
           */
          function _checkContractOnERC721Received(
              address from,
              address to,
              uint256 tokenId,
              bytes memory _data
          ) private returns (bool) {
              try
                  ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data)
              returns (bytes4 retval) {
                  return retval == ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received.selector;
              } catch (bytes memory reason) {
                  if (reason.length == 0) {
                      _revert(TransferToNonERC721ReceiverImplementer.selector);
                  }
                  assembly {
                      revert(add(32, reason), mload(reason))
                  }
              }
          }
          // =============================================================
          //                        MINT OPERATIONS
          // =============================================================
          /**
           * @dev Mints `quantity` tokens and transfers them to `to`.
           *
           * Requirements:
           *
           * - `to` cannot be the zero address.
           * - `quantity` must be greater than 0.
           *
           * Emits a {Transfer} event for each mint.
           */
          function _mint(address to, uint256 quantity) internal virtual {
              uint256 startTokenId = ERC721AStorage.layout()._currentIndex;
              if (quantity == 0) _revert(MintZeroQuantity.selector);
              // Overflows are incredibly unrealistic.
              // `balance` and `numberMinted` have a maximum limit of 2**64.
              // `tokenId` has a maximum limit of 2**256.
              unchecked {
                  // Updates:
                  // - `address` to the owner.
                  // - `startTimestamp` to the timestamp of minting.
                  // - `burned` to `false`.
                  // - `nextInitialized` to `quantity == 1`.
                  ERC721AStorage.layout()._packedOwnerships[startTokenId] = _packOwnershipData(
                      to,
                      _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
                  );
                  // Updates:
                  // - `balance += quantity`.
                  // - `numberMinted += quantity`.
                  //
                  // We can directly add to the `balance` and `numberMinted`.
                  ERC721AStorage.layout()._packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
                  // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
                  uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
                  if (toMasked == 0) _revert(MintToZeroAddress.selector);
                  uint256 end = startTokenId + quantity;
                  uint256 tokenId = startTokenId;
                  do {
                      assembly {
                          // Emit the `Transfer` event.
                          log4(
                              0, // Start of data (0, since no data).
                              0, // End of data (0, since no data).
                              _TRANSFER_EVENT_SIGNATURE, // Signature.
                              0, // `address(0)`.
                              toMasked, // `to`.
                              tokenId // `tokenId`.
                          )
                      }
                      // The `!=` check ensures that large values of `quantity`
                      // that overflows uint256 will make the loop run out of gas.
                  } while (++tokenId != end);
                  ERC721AStorage.layout()._currentIndex = end;
              }
          }
          /**
           * @dev Safely mints `quantity` tokens and transfers them to `to`.
           *
           * Requirements:
           *
           * - If `to` refers to a smart contract, it must implement
           * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
           * - `quantity` must be greater than 0.
           *
           * See {_mint}.
           *
           * Emits a {Transfer} event for each mint.
           */
          function _safeMint(address to, uint256 quantity, bytes memory _data) internal virtual {
              _mint(to, quantity);
              unchecked {
                  if (to.code.length != 0) {
                      uint256 end = ERC721AStorage.layout()._currentIndex;
                      uint256 index = end - quantity;
                      do {
                          if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {
                              _revert(TransferToNonERC721ReceiverImplementer.selector);
                          }
                      } while (index < end);
                      // Reentrancy protection.
                      if (ERC721AStorage.layout()._currentIndex != end) _revert(bytes4(0));
                  }
              }
          }
          /**
           * @dev Equivalent to `_safeMint(to, quantity, '')`.
           */
          function _safeMint(address to, uint256 quantity) internal virtual {
              _safeMint(to, quantity, "");
          }
          // =============================================================
          //                       APPROVAL OPERATIONS
          // =============================================================
          /**
           * @dev Equivalent to `_approve(to, tokenId, false)`.
           */
          function _approve(address to, uint256 tokenId) internal virtual {
              _approve(to, tokenId, false);
          }
          /**
           * @dev Gives permission to `to` to transfer `tokenId` token to another account.
           * The approval is cleared when the token is transferred.
           *
           * Only a single account can be approved at a time, so approving the
           * zero address clears previous approvals.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           *
           * Emits an {Approval} event.
           */
          function _approve(address to, uint256 tokenId, bool approvalCheck) internal virtual {
              address owner = ownerOf(tokenId);
              if (approvalCheck && _msgSenderERC721A() != owner)
                  if (!isApprovedForAll(owner, _msgSenderERC721A())) {
                      _revert(ApprovalCallerNotOwnerNorApproved.selector);
                  }
              ERC721AStorage.layout()._tokenApprovals[tokenId].value = to;
              emit Approval(owner, to, tokenId);
          }
          // =============================================================
          //                        BURN OPERATIONS
          // =============================================================
          /**
           * @dev Equivalent to `_burn(tokenId, false)`.
           */
          function _burn(uint256 tokenId) internal virtual {
              _burn(tokenId, false);
          }
          /**
           * @dev Destroys `tokenId`.
           * The approval is cleared when the token is burned.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           *
           * Emits a {Transfer} event.
           */
          function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
              uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
              address from = address(uint160(prevOwnershipPacked));
              (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
              if (approvalCheck) {
                  // The nested ifs save around 20+ gas over a compound boolean condition.
                  if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
                      if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);
              }
              // Clear approvals from the previous owner.
              assembly {
                  if approvedAddress {
                      // This is equivalent to `delete _tokenApprovals[tokenId]`.
                      sstore(approvedAddressSlot, 0)
                  }
              }
              // Underflow of the sender's balance is impossible because we check for
              // ownership above and the recipient's balance can't realistically overflow.
              // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
              unchecked {
                  // Updates:
                  // - `balance -= 1`.
                  // - `numberBurned += 1`.
                  //
                  // We can directly decrement the balance, and increment the number burned.
                  // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.
                  ERC721AStorage.layout()._packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;
                  // Updates:
                  // - `address` to the last owner.
                  // - `startTimestamp` to the timestamp of burning.
                  // - `burned` to `true`.
                  // - `nextInitialized` to `true`.
                  ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData(
                      from,
                      (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)
                  );
                  // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
                  if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                      uint256 nextTokenId = tokenId + 1;
                      // If the next slot's address is zero and not burned (i.e. packed value is zero).
                      if (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) {
                          // If the next slot is within bounds.
                          if (nextTokenId != ERC721AStorage.layout()._currentIndex) {
                              // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                              ERC721AStorage.layout()._packedOwnerships[nextTokenId] = prevOwnershipPacked;
                          }
                      }
                  }
              }
              emit Transfer(from, address(0), tokenId);
              // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
              unchecked {
                  ERC721AStorage.layout()._burnCounter++;
              }
          }
          // =============================================================
          //                     EXTRA DATA OPERATIONS
          // =============================================================
          /**
           * @dev Directly sets the extra data for the ownership data `index`.
           */
          function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
              uint256 packed = ERC721AStorage.layout()._packedOwnerships[index];
              if (packed == 0) _revert(OwnershipNotInitializedForExtraData.selector);
              uint256 extraDataCasted;
              // Cast `extraData` with assembly to avoid redundant masking.
              assembly {
                  extraDataCasted := extraData
              }
              packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);
              ERC721AStorage.layout()._packedOwnerships[index] = packed;
          }
          /**
           * @dev Called during each token transfer to set the 24bit `extraData` field.
           * Intended to be overridden by the cosumer contract.
           *
           * `previousExtraData` - the value of `extraData` before transfer.
           *
           * Calling conditions:
           *
           * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
           * transferred to `to`.
           * - When `from` is zero, `tokenId` will be minted for `to`.
           * - When `to` is zero, `tokenId` will be burned by `from`.
           * - `from` and `to` are never both zero.
           */
          function _extraData(address from, address to, uint24 previousExtraData) internal view virtual returns (uint24) {}
          /**
           * @dev Returns the next extra data for the packed ownership data.
           * The returned result is shifted into position.
           */
          function _nextExtraData(address from, address to, uint256 prevOwnershipPacked) private view returns (uint256) {
              uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
              return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
          }
          // =============================================================
          //                       OTHER OPERATIONS
          // =============================================================
          /**
           * @dev Returns the message sender (defaults to `msg.sender`).
           *
           * If you are writing GSN compatible contracts, you need to override this function.
           */
          function _msgSenderERC721A() internal view virtual returns (address) {
              return msg.sender;
          }
          /**
           * @dev Converts a uint256 to its ASCII string decimal representation.
           */
          function _toString(uint256 value) internal pure virtual returns (string memory str) {
              assembly {
                  // The maximum value of a uint256 contains 78 digits (1 byte per digit), but
                  // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
                  // We will need 1 word for the trailing zeros padding, 1 word for the length,
                  // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.
                  let m := add(mload(0x40), 0xa0)
                  // Update the free memory pointer to allocate.
                  mstore(0x40, m)
                  // Assign the `str` to the end.
                  str := sub(m, 0x20)
                  // Zeroize the slot after the string.
                  mstore(str, 0)
                  // Cache the end of the memory to calculate the length later.
                  let end := str
                  // We write the string from rightmost digit to leftmost digit.
                  // The following is essentially a do-while loop that also handles the zero case.
                  // prettier-ignore
                  for { let temp := value } 1 {} {
                      str := sub(str, 1)
                      // Write the character to the pointer.
                      // The ASCII index of the '0' character is 48.
                      mstore8(str, add(48, mod(temp, 10)))
                      // Keep dividing `temp` until zero.
                      temp := div(temp, 10)
                      // prettier-ignore
                      if iszero(temp) { break }
                  }
                  let length := sub(end, str)
                  // Move the pointer 32 bytes leftwards to make room for the length.
                  str := sub(str, 0x20)
                  // Store the length.
                  mstore(str, length)
              }
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure virtual {
              assembly {
                  mstore(0x00, errorSelector)
                  revert(0x00, 0x04)
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721URIStorage.sol)
      pragma solidity 0.8.10;
      import "./ERC721AUpgradeable.sol";
      import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
      import "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol";
      /**
       * @title Appending URI storage utilities onto template ERC721A contract
       * @author highlight.xyz, OpenZeppelin
       * @dev ERC721 token with storage based token URI management. OpenZeppelin template edited by Highlight
       */
      /* solhint-disable */
      abstract contract ERC721AURIStorageUpgradeable is Initializable, ERC721AUpgradeable {
          /**
           * @notice Throw when token doesn't exist
           */
          error TokenDoesNotExist();
          function __ERC721URIStorage_init() internal onlyInitializing {}
          function __ERC721URIStorage_init_unchained() internal onlyInitializing {}
          using StringsUpgradeable for uint256;
          // Optional mapping for token URIs
          mapping(uint256 => string) internal _tokenURIs;
          /**
           * @dev Hashed rotation key data
           */
          bytes internal _hashedRotationKeyData;
          /**
           * @dev Hashed base uri data
           */
          bytes internal _hashedBaseURIData;
          /**
           * @dev Rotation key
           */
          uint256 internal _rotationKey;
          /**
           * @dev Contract baseURI
           */
          string public baseURI;
          /**
           * @notice Emitted when base uri is set
           * @param oldBaseUri Old base uri
           * @param newBaseURI New base uri
           */
          event BaseURISet(string oldBaseUri, string newBaseURI);
          /**
           * @dev Set contract baseURI
           */
          function _setBaseURI(string memory newBaseURI) internal {
              emit BaseURISet(baseURI, newBaseURI);
              baseURI = newBaseURI;
          }
          /**
           * @dev See {IERC721Metadata-tokenURI}.
           */
          function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
              if (!_exists(tokenId)) {
                  _revert(TokenDoesNotExist.selector);
              }
              string memory _tokenURI = _tokenURIs[tokenId];
              // If there is no token URI, return the base URI.
              if (bytes(_tokenURI).length == 0) {
                  return super.tokenURI(tokenId);
              }
              return _tokenURI;
          }
          /**
           * @dev See {ERC721-_burn}. This override additionally checks to see if a
           * token-specific URI was set for the token, and if so, it deletes the token URI from
           * the storage mapping.
           */
          function _burn(uint256 tokenId) internal virtual override {
              super._burn(tokenId);
              if (bytes(_tokenURIs[tokenId]).length != 0) {
                  delete _tokenURIs[tokenId];
              }
          }
          function _baseURI() internal view override returns (string memory) {
              return baseURI;
          }
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[49] private __gap;
      }
      // SPDX-License-Identifier: MIT
      // ERC721A Contracts v4.2.3
      // Creator: Chiru Labs
      pragma solidity 0.8.10;
      /* solhint-disable */
      /**
       * @dev Interface of ERC721A.
       */
      interface IERC721AUpgradeable {
          /**
           * The caller must own the token or be an approved operator.
           */
          error ApprovalCallerNotOwnerNorApproved();
          /**
           * The token does not exist.
           */
          error ApprovalQueryForNonexistentToken();
          /**
           * Cannot query the balance for the zero address.
           */
          error BalanceQueryForZeroAddress();
          /**
           * Cannot mint to the zero address.
           */
          error MintToZeroAddress();
          /**
           * The quantity of tokens minted must be more than zero.
           */
          error MintZeroQuantity();
          /**
           * The token does not exist.
           */
          error OwnerQueryForNonexistentToken();
          /**
           * The caller must own the token or be an approved operator.
           */
          error TransferCallerNotOwnerNorApproved();
          /**
           * The token must be owned by `from`.
           */
          error TransferFromIncorrectOwner();
          /**
           * Cannot safely transfer to a contract that does not implement the
           * ERC721Receiver interface.
           */
          error TransferToNonERC721ReceiverImplementer();
          /**
           * Cannot transfer to the zero address.
           */
          error TransferToZeroAddress();
          /**
           * The token does not exist.
           */
          error URIQueryForNonexistentToken();
          /**
           * The `quantity` minted with ERC2309 exceeds the safety limit.
           */
          error MintERC2309QuantityExceedsLimit();
          /**
           * The `extraData` cannot be set on an unintialized ownership slot.
           */
          error OwnershipNotInitializedForExtraData();
          // =============================================================
          //                            STRUCTS
          // =============================================================
          struct TokenOwnership {
              // The address of the owner.
              address addr;
              // Stores the start time of ownership with minimal overhead for tokenomics.
              uint64 startTimestamp;
              // Whether the token has been burned.
              bool burned;
              // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
              uint24 extraData;
          }
          // =============================================================
          //                         TOKEN COUNTERS
          // =============================================================
          /**
           * @dev Returns the total number of tokens in existence.
           * Burned tokens will reduce the count.
           * To get the total number of tokens minted, please see {_totalMinted}.
           */
          function totalSupply() external view returns (uint256);
          // =============================================================
          //                            IERC165
          // =============================================================
          /**
           * @dev Returns true if this contract implements the interface defined by
           * `interfaceId`. See the corresponding
           * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
           * to learn more about how these ids are created.
           *
           * This function call must use less than 30000 gas.
           */
          function supportsInterface(bytes4 interfaceId) external view returns (bool);
          // =============================================================
          //                            IERC721
          // =============================================================
          /**
           * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
           */
          event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
          /**
           * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
           */
          event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
          /**
           * @dev Emitted when `owner` enables or disables
           * (`approved`) `operator` to manage all of its assets.
           */
          event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
          /**
           * @dev Returns the number of tokens in `owner`'s account.
           */
          function balanceOf(address owner) external view returns (uint256 balance);
          /**
           * @dev Returns the owner of the `tokenId` token.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function ownerOf(uint256 tokenId) external view returns (address owner);
          /**
           * @dev Safely transfers `tokenId` token from `from` to `to`,
           * checking first that contract recipients are aware of the ERC721 protocol
           * to prevent tokens from being forever locked.
           *
           * Requirements:
           *
           * - `from` cannot be the zero address.
           * - `to` cannot be the zero address.
           * - `tokenId` token must exist and be owned by `from`.
           * - If the caller is not `from`, it must be have been allowed to move
           * this token by either {approve} or {setApprovalForAll}.
           * - If `to` refers to a smart contract, it must implement
           * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
           *
           * Emits a {Transfer} event.
           */
          function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external payable;
          /**
           * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
           */
          function safeTransferFrom(address from, address to, uint256 tokenId) external payable;
          /**
           * @dev Transfers `tokenId` from `from` to `to`.
           *
           * WARNING: Usage of this method is discouraged, use {safeTransferFrom}
           * whenever possible.
           *
           * Requirements:
           *
           * - `from` cannot be the zero address.
           * - `to` cannot be the zero address.
           * - `tokenId` token must be owned by `from`.
           * - If the caller is not `from`, it must be approved to move this token
           * by either {approve} or {setApprovalForAll}.
           *
           * Emits a {Transfer} event.
           */
          function transferFrom(address from, address to, uint256 tokenId) external payable;
          /**
           * @dev Gives permission to `to` to transfer `tokenId` token to another account.
           * The approval is cleared when the token is transferred.
           *
           * Only a single account can be approved at a time, so approving the
           * zero address clears previous approvals.
           *
           * Requirements:
           *
           * - The caller must own the token or be an approved operator.
           * - `tokenId` must exist.
           *
           * Emits an {Approval} event.
           */
          function approve(address to, uint256 tokenId) external payable;
          /**
           * @dev Approve or remove `operator` as an operator for the caller.
           * Operators can call {transferFrom} or {safeTransferFrom}
           * for any token owned by the caller.
           *
           * Requirements:
           *
           * - The `operator` cannot be the caller.
           *
           * Emits an {ApprovalForAll} event.
           */
          function setApprovalForAll(address operator, bool _approved) external;
          /**
           * @dev Returns the account approved for `tokenId` token.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function getApproved(uint256 tokenId) external view returns (address operator);
          /**
           * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
           *
           * See {setApprovalForAll}.
           */
          function isApprovedForAll(address owner, address operator) external view returns (bool);
          // =============================================================
          //                        IERC721Metadata
          // =============================================================
          /**
           * @dev Returns the token collection name.
           */
          function name() external view returns (string memory);
          /**
           * @dev Returns the token collection symbol.
           */
          function symbol() external view returns (string memory);
          /**
           * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
           */
          function tokenURI(uint256 tokenId) external view returns (string memory);
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "../royaltyManager/interfaces/IRoyaltyManager.sol";
      import "../tokenManager/interfaces/ITokenManager.sol";
      import "../utils/Ownable.sol";
      import "../utils/ERC2981/IERC2981Upgradeable.sol";
      import "../utils/ERC165/ERC165CheckerUpgradeable.sol";
      import "../metatx/ERC2771ContextUpgradeable.sol";
      import "../observability/IObservability.sol";
      import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
      import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
      import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
      /**
       * @title Base ERC721
       * @author highlight.xyz
       * @notice Core piece of Highlight NFT contracts (v2)
       */
      abstract contract ERC721Base is
          OwnableUpgradeable,
          IERC2981Upgradeable,
          ERC2771ContextUpgradeable,
          ReentrancyGuardUpgradeable
      {
          using EnumerableSet for EnumerableSet.AddressSet;
          using ERC165CheckerUpgradeable for address;
          /**
           * @notice Throw when token or royalty manager is invalid
           */
          error InvalidManager();
          /**
           * @notice Throw when token or royalty manager does not exist
           */
          error ManagerDoesNotExist();
          /**
           * @notice Throw when sender is unauthorized to perform action
           */
          error Unauthorized();
          /**
           * @notice Throw when sender is not a minter
           */
          error NotMinter();
          /**
           * @notice Throw when token manager or royalty manager swap is blocked
           */
          error ManagerSwapBlocked();
          /**
           * @notice Throw when token manager or royalty manager remove is blocked
           */
          error ManagerRemoveBlocked();
          /**
           * @notice Throw when setting default or granular royalty is blocked
           */
          error RoyaltySetBlocked();
          /**
           * @notice Throw when royalty BPS is invalid
           */
          error RoyaltyBPSInvalid();
          /**
           * @notice Throw when minter registration is invalid
           */
          error MinterRegistrationInvalid();
          /**
           * @notice Set of minters allowed to mint on contract
           */
          EnumerableSet.AddressSet internal _minters;
          /**
           * @notice Global token/edition manager default
           */
          address public defaultManager;
          /**
           * @notice Token/edition managers per token grouping.
           *      Edition ID if implemented by Editions contract, and token ID if implemented by General contract.
           */
          mapping(uint256 => address) internal _managers;
          /**
           * @notice Default royalty for entire contract
           */
          IRoyaltyManager.Royalty internal _defaultRoyalty;
          /**
           * @notice Royalty per token grouping.
           *      Edition ID if implemented by Editions contract, and token ID if implemented by General contract.
           */
          mapping(uint256 => IRoyaltyManager.Royalty) internal _royalties;
          /**
           * @notice Royalty manager - optional contract that defines the conditions around setting royalties
           */
          address public royaltyManager;
          /**
           * @notice Freezes minting on smart contract forever
           */
          uint8 internal _mintFrozen;
          /**
           * @notice Observability contract
           */
          IObservability public observability;
          /**
           * @notice Emitted when minter is registered or unregistered
           * @param minter Minter that was changed
           * @param registered True if the minter was registered, false if unregistered
           */
          event MinterRegistrationChanged(address indexed minter, bool indexed registered);
          /**
           * @notice Emitted when token managers are set for token/edition ids
           * @param _ids Edition / token ids
           * @param _tokenManagers Token managers to set for tokens / editions
           */
          event GranularTokenManagersSet(uint256[] _ids, address[] _tokenManagers);
          /**
           * @notice Emitted when token managers are removed for token/edition ids
           * @param _ids Edition / token ids to remove token managers for
           */
          event GranularTokenManagersRemoved(uint256[] _ids);
          /**
           * @notice Emitted when default token manager changed
           * @param newDefaultTokenManager New default token manager. Zero address if old one was removed
           */
          event DefaultTokenManagerChanged(address indexed newDefaultTokenManager);
          /**
           * @notice Emitted when default royalty is set
           * @param recipientAddress Royalty recipient
           * @param royaltyPercentageBPS Percentage of sale (in basis points) owed to royalty recipient
           */
          event DefaultRoyaltySet(address indexed recipientAddress, uint16 indexed royaltyPercentageBPS);
          /**
           * @notice Emitted when royalties are set for edition / token ids
           * @param ids Token / edition ids
           * @param _newRoyalties New royalties for each token / edition
           */
          event GranularRoyaltiesSet(uint256[] ids, IRoyaltyManager.Royalty[] _newRoyalties);
          /**
           * @notice Emitted when royalty manager is updated
           * @param newRoyaltyManager New royalty manager. Zero address if old one was removed
           */
          event RoyaltyManagerChanged(address indexed newRoyaltyManager);
          /**
           * @notice Emitted when mints are frozen permanently
           */
          event MintsFrozen();
          /**
           * @notice Restricts calls to minters
           */
          modifier onlyMinter() {
              if (!_minters.contains(_msgSender())) {
                  _revert(NotMinter.selector);
              }
              _;
          }
          /**
           * @notice Restricts calls if input royalty bps is over 10000
           */
          modifier royaltyValid(uint16 _royaltyBPS) {
              if (!_royaltyBPSValid(_royaltyBPS)) {
                  _revert(RoyaltyBPSInvalid.selector);
              }
              _;
          }
          /**
           * @notice Registers a minter
           * @param minter New minter
           */
          function registerMinter(address minter) external onlyOwner {
              if (!_minters.add(minter)) {
                  _revert(MinterRegistrationInvalid.selector);
              }
              emit MinterRegistrationChanged(minter, true);
              observability.emitMinterRegistrationChanged(minter, true);
          }
          /**
           * @notice Unregisters a minter
           * @param minter Minter to unregister
           */
          function unregisterMinter(address minter) external onlyOwner {
              if (!_minters.remove(minter)) {
                  _revert(MinterRegistrationInvalid.selector);
              }
              emit MinterRegistrationChanged(minter, false);
              observability.emitMinterRegistrationChanged(minter, false);
          }
          /**
           * @notice Sets granular token managers if current token manager(s) allow it
           * @param _ids Edition / token ids
           * @param _tokenManagers Token managers to set for tokens / editions
           */
          function setGranularTokenManagers(
              uint256[] calldata _ids,
              address[] calldata _tokenManagers
          ) external nonReentrant {
              address msgSender = _msgSender();
              address tempOwner = owner();
              uint256 idsLength = _ids.length;
              for (uint256 i = 0; i < idsLength; i++) {
                  if (!_isValidTokenManager(_tokenManagers[i])) {
                      _revert(InvalidManager.selector);
                  }
                  address currentTokenManager = tokenManager(_ids[i]);
                  if (currentTokenManager == address(0)) {
                      if (msgSender != tempOwner) {
                          _revert(Unauthorized.selector);
                      }
                  } else {
                      if (!ITokenManager(currentTokenManager).canSwap(msgSender, _ids[i], _managers[i])) {
                          _revert(ManagerSwapBlocked.selector);
                      }
                  }
                  _managers[_ids[i]] = _tokenManagers[i];
              }
              emit GranularTokenManagersSet(_ids, _tokenManagers);
              observability.emitGranularTokenManagersSet(_ids, _tokenManagers);
          }
          /**
           * @notice Remove granular token managers
           * @param _ids Edition / token ids to remove token managers for
           */
          function removeGranularTokenManagers(uint256[] calldata _ids) external nonReentrant {
              address msgSender = _msgSender();
              uint256 idsLength = _ids.length;
              for (uint256 i = 0; i < idsLength; i++) {
                  address currentTokenManager = _managers[_ids[i]];
                  if (currentTokenManager == address(0)) {
                      _revert(ManagerDoesNotExist.selector);
                  }
                  if (!ITokenManager(currentTokenManager).canRemoveItself(msgSender, _ids[i])) {
                      _revert(ManagerRemoveBlocked.selector);
                  }
                  _managers[_ids[i]] = address(0);
              }
              emit GranularTokenManagersRemoved(_ids);
              observability.emitGranularTokenManagersRemoved(_ids);
          }
          /**
           * @notice Set default token manager if current token manager allows it
           * @param _defaultTokenManager New default token manager
           */
          function setDefaultTokenManager(address _defaultTokenManager) external nonReentrant {
              if (!_isValidTokenManager(_defaultTokenManager)) {
                  _revert(InvalidManager.selector);
              }
              address msgSender = _msgSender();
              address currentTokenManager = defaultManager;
              if (currentTokenManager == address(0)) {
                  if (msgSender != owner()) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!ITokenManager(currentTokenManager).canSwap(msgSender, 0, _defaultTokenManager)) {
                      _revert(ManagerSwapBlocked.selector);
                  }
              }
              defaultManager = _defaultTokenManager;
              emit DefaultTokenManagerChanged(_defaultTokenManager);
              observability.emitDefaultTokenManagerChanged(_defaultTokenManager);
          }
          /**
           * @notice Removes default token manager if current token manager allows it
           */
          function removeDefaultTokenManager() external nonReentrant {
              address msgSender = _msgSender();
              address currentTokenManager = defaultManager;
              if (currentTokenManager == address(0)) {
                  _revert(ManagerDoesNotExist.selector);
              }
              if (!ITokenManager(currentTokenManager).canRemoveItself(msgSender, 0)) {
                  _revert(ManagerRemoveBlocked.selector);
              }
              defaultManager = address(0);
              emit DefaultTokenManagerChanged(address(0));
              observability.emitDefaultTokenManagerChanged(address(0));
          }
          /**
           * @notice Sets default royalty if royalty manager allows it
           * @param _royalty New default royalty
           */
          function setDefaultRoyalty(
              IRoyaltyManager.Royalty calldata _royalty
          ) external nonReentrant royaltyValid(_royalty.royaltyPercentageBPS) {
              address msgSender = _msgSender();
              address _royaltyManager = royaltyManager;
              if (_royaltyManager == address(0)) {
                  if (msgSender != owner()) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!IRoyaltyManager(_royaltyManager).canSetDefaultRoyalty(_royalty, msgSender)) {
                      _revert(RoyaltySetBlocked.selector);
                  }
              }
              _defaultRoyalty = _royalty;
              emit DefaultRoyaltySet(_royalty.recipientAddress, _royalty.royaltyPercentageBPS);
              observability.emitDefaultRoyaltySet(_royalty.recipientAddress, _royalty.royaltyPercentageBPS);
          }
          /**
           * @notice Sets granular royalties (per token-grouping) if royalty manager allows it
           * @param ids Token / edition ids
           * @param _newRoyalties New royalties for each token / edition
           */
          function setGranularRoyalties(
              uint256[] calldata ids,
              IRoyaltyManager.Royalty[] calldata _newRoyalties
          ) external nonReentrant {
              address msgSender = _msgSender();
              address tempOwner = owner();
              address _royaltyManager = royaltyManager;
              uint256 idsLength = ids.length;
              if (_royaltyManager == address(0)) {
                  if (msgSender != tempOwner) {
                      _revert(Unauthorized.selector);
                  }
                  for (uint256 i = 0; i < idsLength; i++) {
                      if (!_royaltyBPSValid(_newRoyalties[i].royaltyPercentageBPS)) {
                          _revert(RoyaltyBPSInvalid.selector);
                      }
                      _royalties[ids[i]] = _newRoyalties[i];
                  }
              } else {
                  for (uint256 i = 0; i < idsLength; i++) {
                      if (!_royaltyBPSValid(_newRoyalties[i].royaltyPercentageBPS)) {
                          _revert(RoyaltyBPSInvalid.selector);
                      }
                      if (!IRoyaltyManager(_royaltyManager).canSetGranularRoyalty(ids[i], _newRoyalties[i], msgSender)) {
                          _revert(RoyaltySetBlocked.selector);
                      }
                      _royalties[ids[i]] = _newRoyalties[i];
                  }
              }
              emit GranularRoyaltiesSet(ids, _newRoyalties);
              observability.emitGranularRoyaltiesSet(ids, _newRoyalties);
          }
          /**
           * @notice Sets royalty manager if current one allows it
           * @param _royaltyManager New royalty manager
           */
          function setRoyaltyManager(address _royaltyManager) external nonReentrant {
              if (!_isValidRoyaltyManager(_royaltyManager)) {
                  _revert(InvalidManager.selector);
              }
              address msgSender = _msgSender();
              address currentRoyaltyManager = royaltyManager;
              if (currentRoyaltyManager == address(0)) {
                  if (msgSender != owner()) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!IRoyaltyManager(currentRoyaltyManager).canSwap(_royaltyManager, msgSender)) {
                      _revert(ManagerSwapBlocked.selector);
                  }
              }
              royaltyManager = _royaltyManager;
              emit RoyaltyManagerChanged(_royaltyManager);
              observability.emitRoyaltyManagerChanged(_royaltyManager);
          }
          /**
           * @notice Removes royalty manager if current one allows it
           */
          function removeRoyaltyManager() external nonReentrant {
              address msgSender = _msgSender();
              address currentRoyaltyManager = royaltyManager;
              if (currentRoyaltyManager == address(0)) {
                  _revert(ManagerDoesNotExist.selector);
              }
              if (!IRoyaltyManager(currentRoyaltyManager).canRemoveItself(msgSender)) {
                  _revert(ManagerRemoveBlocked.selector);
              }
              royaltyManager = address(0);
              emit RoyaltyManagerChanged(address(0));
              observability.emitRoyaltyManagerChanged(address(0));
          }
          /**
           * @notice Freeze mints on contract forever
           */
          function freezeMints() external onlyOwner nonReentrant {
              _mintFrozen = 1;
              emit MintsFrozen();
              observability.emitMintsFrozen();
          }
          /**
           * @notice Return allowed minters on contract
           */
          function minters() external view returns (address[] memory) {
              return _minters.values();
          }
          /**
           * @notice Conforms to ERC-2981. Editions should overwrite to return royalty for entire edition
           * @param _tokenGroupingId Token id if on general, and edition id if on editions
           * @param _salePrice Sale price of token
           */
          function royaltyInfo(
              uint256 _tokenGroupingId,
              uint256 _salePrice
          ) public view virtual override returns (address receiver, uint256 royaltyAmount) {
              IRoyaltyManager.Royalty memory royalty = _royalties[_tokenGroupingId];
              if (royalty.recipientAddress == address(0)) {
                  royalty = _defaultRoyalty;
              }
              receiver = royalty.recipientAddress;
              royaltyAmount = (_salePrice * uint256(royalty.royaltyPercentageBPS)) / 10000;
          }
          /**
           * @notice Returns the token manager for the id passed in.
           * @param id Token ID or Edition ID for Editions implementing contracts
           */
          function tokenManager(uint256 id) public view returns (address manager) {
              manager = defaultManager;
              address granularManager = _managers[id];
              if (granularManager != address(0)) {
                  manager = granularManager;
              }
          }
          /**
           * @notice Initializes the contract, setting the creator as the initial owner.
           * @param _creator Contract creator
           * @param defaultRoyalty Default royalty for the contract
           * @param _defaultTokenManager Default token manager for the contract
           */
          function __ERC721Base_initialize(
              address _creator,
              IRoyaltyManager.Royalty memory defaultRoyalty,
              address _defaultTokenManager
          ) internal onlyInitializing royaltyValid(defaultRoyalty.royaltyPercentageBPS) {
              __Ownable_init();
              __ReentrancyGuard_init();
              _transferOwnership(_creator);
              if (defaultRoyalty.recipientAddress != address(0)) {
                  _defaultRoyalty = defaultRoyalty;
              }
              if (_defaultTokenManager != address(0)) {
                  defaultManager = _defaultTokenManager;
              }
          }
          /**
           * @notice Returns true if address is a valid tokenManager
           * @param _tokenManager Token manager being checked
           */
          function _isValidTokenManager(address _tokenManager) internal view returns (bool) {
              return _tokenManager.supportsInterface(type(ITokenManager).interfaceId);
          }
          /**
           * @notice Returns true if address is a valid royaltyManager
           * @param _royaltyManager Royalty manager being checked
           */
          function _isValidRoyaltyManager(address _royaltyManager) internal view returns (bool) {
              return _royaltyManager.supportsInterface(type(IRoyaltyManager).interfaceId);
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgSender()
              internal
              view
              virtual
              override(ContextUpgradeable, ERC2771ContextUpgradeable)
              returns (address sender)
          {
              return ERC2771ContextUpgradeable._msgSender();
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure virtual {
              assembly {
                  mstore(0x00, errorSelector)
                  revert(0x00, 0x04)
              }
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgData()
              internal
              view
              virtual
              override(ContextUpgradeable, ERC2771ContextUpgradeable)
              returns (bytes calldata)
          {
              return ERC2771ContextUpgradeable._msgData();
          }
          /**
           * @notice Returns true if royalty bps passed in is valid (<= 10000)
           * @param _royaltyBPS Royalty basis points
           */
          function _royaltyBPSValid(uint16 _royaltyBPS) private pure returns (bool) {
              return _royaltyBPS <= 10000;
          }
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "./ERC721Base.sol";
      import "../metadata/MetadataEncryption.sol";
      import "../tokenManager/interfaces/IPostTransfer.sol";
      import "../tokenManager/interfaces/IPostBurn.sol";
      import "./interfaces/IERC721GeneralMint.sol";
      import "./ERC721GeneralSequenceBase.sol";
      import "./onchain/OnchainFileStorage.sol";
      /**
       * @title Generalized ERC721 that expects tokenIds to increment in a monotonically increasing sequence
       * @author highlight.xyz
       * @notice Generalized NFT smart contract
       */
      contract ERC721GeneralSequence is ERC721GeneralSequenceBase, OnchainFileStorage {
          using EnumerableSet for EnumerableSet.AddressSet;
          /**
           * @notice Initialize the contract
           * @param creator Creator/owner of contract
           * @param _contractURI Contract metadata
           * @param defaultRoyalty Default royalty object for contract (optional)
           * @param _defaultTokenManager Default token manager for contract (optional)
           * @param _name Name of token edition
           * @param _symbol Symbol of the token edition
           * @param trustedForwarder Trusted minimal forwarder
           * @param initialMinter Initial minter to register
           * @param newBaseURI Base URI for contract
           * @param _limitSupply Initial limit supply
           * @param useMarketplaceFiltererRegistry Denotes whether to use marketplace filterer registry
           * @param _observability Observability contract address
           */
          function initialize(
              address creator,
              string memory _contractURI,
              IRoyaltyManager.Royalty memory defaultRoyalty,
              address _defaultTokenManager,
              string memory _name,
              string memory _symbol,
              address trustedForwarder,
              address initialMinter,
              string memory newBaseURI,
              uint256 _limitSupply,
              bool useMarketplaceFiltererRegistry,
              address _observability
          ) external initializer {
              _initialize(
                  creator,
                  _contractURI,
                  defaultRoyalty,
                  _defaultTokenManager,
                  _name,
                  _symbol,
                  trustedForwarder,
                  initialMinter,
                  newBaseURI,
                  _limitSupply,
                  useMarketplaceFiltererRegistry,
                  _observability
              );
          }
          /**
           * @notice Initialize the contract
           * @param creator Creator/owner of contract
           * @param data Data to initialize the contract
           * @ param _contractURI Contract metadata
           * @ param defaultRoyalty Default royalty object for contract (optional)
           * @ param _defaultTokenManager Default token manager for contract (optional)
           * @ param _name Name of token edition
           * @ param _symbol Symbol of the token edition
           * @ param trustedForwarder Trusted minimal forwarder
           * @ param initialMinter Initial minter to register
           * @ param newBaseURI Base URI for contract
           * @ param _limitSupply Initial limit supply
           * @ param useMarketplaceFiltererRegistry Denotes whether to use marketplace filterer registry
           * @ param _observability Observability contract address
           */
          function initialize(address creator, bytes memory data) external initializer {
              (
                  string memory _contractURI,
                  IRoyaltyManager.Royalty memory defaultRoyalty,
                  address _defaultTokenManager,
                  string memory _name,
                  string memory _symbol,
                  address trustedForwarder,
                  address initialMinter,
                  string memory newBaseURI,
                  uint256 _limitSupply,
                  bool useMarketplaceFiltererRegistry,
                  address _observability
              ) = abi.decode(
                      data,
                      (
                          string,
                          IRoyaltyManager.Royalty,
                          address,
                          string,
                          string,
                          address,
                          address,
                          string,
                          uint256,
                          bool,
                          address
                      )
                  );
              _initialize(
                  creator,
                  _contractURI,
                  defaultRoyalty,
                  _defaultTokenManager,
                  _name,
                  _symbol,
                  trustedForwarder,
                  initialMinter,
                  newBaseURI,
                  _limitSupply,
                  useMarketplaceFiltererRegistry,
                  _observability
              );
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgSender()
              internal
              view
              virtual
              override(ERC721GeneralSequenceBase, ContextUpgradeable)
              returns (address sender)
          {
              return ERC721GeneralSequenceBase._msgSender();
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgData()
              internal
              view
              virtual
              override(ERC721GeneralSequenceBase, ContextUpgradeable)
              returns (bytes calldata)
          {
              return ERC721GeneralSequenceBase._msgData();
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure override(ERC721GeneralSequenceBase, OnchainFileStorage) {
              assembly {
                  mstore(0x00, errorSelector)
                  revert(0x00, 0x04)
              }
          }
          /**
           * @notice Initialize the contract
           * @param creator Creator/owner of contract
           * @param _contractURI Contract metadata
           * @param defaultRoyalty Default royalty object for contract (optional)
           * @param _defaultTokenManager Default token manager for contract (optional)
           * @param _name Name of token edition
           * @param _symbol Symbol of the token edition
           * @param trustedForwarder Trusted minimal forwarder
           * @param initialMinter Initial minter to register
           * @param newBaseURI Base URI for contract
           * @param _limitSupply Initial limit supply
           * @param useMarketplaceFiltererRegistry Denotes whether to use marketplace filterer registry
           * @param _observability Observability contract address
           */
          function _initialize(
              address creator,
              string memory _contractURI,
              IRoyaltyManager.Royalty memory defaultRoyalty,
              address _defaultTokenManager,
              string memory _name,
              string memory _symbol,
              address trustedForwarder,
              address initialMinter,
              string memory newBaseURI,
              uint256 _limitSupply,
              bool useMarketplaceFiltererRegistry,
              address _observability
          ) private {
              __ERC721URIStorage_init();
              __ERC721Base_initialize(creator, defaultRoyalty, _defaultTokenManager);
              __ERC2771ContextUpgradeable__init__(trustedForwarder);
              __ERC721A_init(_name, _symbol);
              // deprecate but keep input for backwards-compatibility:
              // __MarketplaceFilterer__init__(useMarketplaceFiltererRegistry);
              _minters.add(initialMinter);
              contractURI = _contractURI;
              IObservability(_observability).emitSeriesDeployed(address(this));
              observability = IObservability(_observability);
              if (bytes(newBaseURI).length > 0) {
                  _setBaseURI(newBaseURI);
                  // don't emit on observability contract here
              }
              if (_limitSupply > 0) {
                  limitSupply = _limitSupply;
                  // don't emit on observability contract here
              }
          }
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "./ERC721Base.sol";
      import "../metadata/MetadataEncryption.sol";
      import "../tokenManager/interfaces/IPostTransfer.sol";
      import "../tokenManager/interfaces/IPostBurn.sol";
      import "./interfaces/IERC721GeneralSequenceMint.sol";
      import "./erc721a/ERC721AURIStorageUpgradeable.sol";
      import "./inchain-rendering/interfaces/IHLRenderer.sol";
      /**
       * @title Generalized Base ERC721
       * @author highlight.xyz
       * @notice Generalized Base NFT smart contract
       */
      abstract contract ERC721GeneralSequenceBase is ERC721Base, ERC721AURIStorageUpgradeable, IERC721GeneralSequenceMint {
          using EnumerableSet for EnumerableSet.AddressSet;
          /**
           * @notice Throw when attempting to mint, while mint is frozen
           */
          error MintFrozen();
          /**
           * @notice Throw when requested token is not in range within bounds of limit supply
           */
          error TokenNotInRange();
          /**
           * @notice Throw when new supply is over limit supply
           */
          error OverLimitSupply();
          /**
           * @notice Throw when array lengths are mismatched
           */
          error MismatchedArrayLengths();
          /**
           * @notice Throw when string is empty
           */
          error EmptyString();
          /**
           * @notice Custom renderer config, used for collections where metadata is rendered "in-chain"
           * @param renderer Renderer address
           * @param processMintDataOnRenderer If true, process mint data on renderer
           */
          struct CustomRendererConfig {
              address renderer;
              bool processMintDataOnRenderer;
          }
          /**
           * @notice Contract metadata
           */
          string public contractURI;
          /**
           * @notice Limit the supply to take advantage of over-promising in summation with multiple mint vectors
           */
          uint256 public limitSupply;
          /**
           * @notice Custom renderer config
           */
          CustomRendererConfig public customRendererConfig;
          /**
           * @notice Emitted when uris are set for tokens
           * @param ids IDs of tokens to set uris for
           * @param uris Uris to set on tokens
           */
          event TokenURIsSet(uint256[] ids, string[] uris);
          /**
           * @notice Emitted when limit supply is set
           * @param newLimitSupply Limit supply to set
           */
          event LimitSupplySet(uint256 indexed newLimitSupply);
          /**
           * @notice See {IERC721GeneralMint-mintOneToOneRecipient}
           */
          function mintOneToOneRecipient(address recipient) external virtual onlyMinter nonReentrant returns (uint256) {
              if (_mintFrozen == 1) {
                  _revert(MintFrozen.selector);
              }
              uint256 tempSupply = _nextTokenId();
              _requireLimitSupply(tempSupply);
              _mint(recipient, 1);
              // process mint on custom renderer if present
              CustomRendererConfig memory _customRendererConfig = customRendererConfig;
              if (_customRendererConfig.processMintDataOnRenderer) {
                  IHLRenderer(_customRendererConfig.renderer).processOneRecipientMint(tempSupply, 1, recipient);
              }
              return tempSupply;
          }
          /**
           * @notice See {IERC721GeneralMint-mintAmountToOneRecipient}
           */
          function mintAmountToOneRecipient(address recipient, uint256 amount) external virtual onlyMinter nonReentrant {
              if (_mintFrozen == 1) {
                  _revert(MintFrozen.selector);
              }
              uint256 tempSupply = _nextTokenId() - 1; // cache
              _mint(recipient, amount);
              _requireLimitSupply(tempSupply + amount);
              // process mint on custom renderer if present
              CustomRendererConfig memory _customRendererConfig = customRendererConfig;
              if (_customRendererConfig.processMintDataOnRenderer) {
                  IHLRenderer(_customRendererConfig.renderer).processOneRecipientMint(tempSupply + 1, amount, recipient);
              }
          }
          /**
           * @notice See {IERC721GeneralMint-mintOneToMultipleRecipients}
           */
          function mintOneToMultipleRecipients(address[] calldata recipients) external onlyMinter nonReentrant {
              if (_mintFrozen == 1) {
                  _revert(MintFrozen.selector);
              }
              uint256 recipientsLength = recipients.length;
              uint256 tempSupply = _nextTokenId() - 1; // cache
              for (uint256 i = 0; i < recipientsLength; i++) {
                  _mint(recipients[i], 1);
              }
              _requireLimitSupply(tempSupply + recipientsLength);
              // process mint on custom renderer if present
              CustomRendererConfig memory _customRendererConfig = customRendererConfig;
              if (_customRendererConfig.processMintDataOnRenderer) {
                  IHLRenderer(_customRendererConfig.renderer).processMultipleRecipientMint(tempSupply + 1, 1, recipients);
              }
          }
          /**
           * @notice See {IERC721GeneralMint-mintSameAmountToMultipleRecipients}
           */
          function mintSameAmountToMultipleRecipients(
              address[] calldata recipients,
              uint256 amount
          ) external onlyMinter nonReentrant {
              if (_mintFrozen == 1) {
                  _revert(MintFrozen.selector);
              }
              uint256 recipientsLength = recipients.length;
              uint256 tempSupply = _nextTokenId() - 1; // cache
              for (uint256 i = 0; i < recipientsLength; i++) {
                  _mint(recipients[i], amount);
              }
              _requireLimitSupply(tempSupply + recipientsLength * amount);
              // process mint on custom renderer if present
              CustomRendererConfig memory _customRendererConfig = customRendererConfig;
              if (_customRendererConfig.processMintDataOnRenderer) {
                  IHLRenderer(_customRendererConfig.renderer).processMultipleRecipientMint(
                      tempSupply + 1,
                      amount,
                      recipients
                  );
              }
          }
          /**
           * @notice Set custom renderer and processing config
           * @param _customRendererConfig New custom renderer config
           */
          function setCustomRenderer(CustomRendererConfig calldata _customRendererConfig) external onlyOwner {
              require(_customRendererConfig.renderer != address(0), "Invalid input");
              customRendererConfig = _customRendererConfig;
          }
          /**
           * @notice Override base URI system for select tokens, with custom per-token metadata
           * @param ids IDs of tokens to override base uri system for with custom uris
           * @param uris Custom uris
           */
          function setTokenURIs(uint256[] calldata ids, string[] calldata uris) external nonReentrant {
              uint256 idsLength = ids.length;
              if (idsLength != uris.length) {
                  _revert(MismatchedArrayLengths.selector);
              }
              for (uint256 i = 0; i < idsLength; i++) {
                  _setTokenURI(ids[i], uris[i]);
              }
              emit TokenURIsSet(ids, uris);
              observability.emitTokenURIsSet(ids, uris);
          }
          /**
           * @notice Set base uri
           * @param newBaseURI New base uri to set
           */
          function setBaseURI(string calldata newBaseURI) external nonReentrant {
              if (bytes(newBaseURI).length == 0) {
                  _revert(EmptyString.selector);
              }
              address _manager = defaultManager;
              if (_manager == address(0)) {
                  if (_msgSender() != owner()) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!ITokenManager(_manager).canUpdateMetadata(_msgSender(), 0, bytes(newBaseURI))) {
                      _revert(Unauthorized.selector);
                  }
              }
              _setBaseURI(newBaseURI);
              observability.emitBaseUriSet(newBaseURI);
          }
          /**
           * @notice Set limit supply
           * @param _limitSupply Limit supply to set
           */
          function setLimitSupply(uint256 _limitSupply) external onlyOwner nonReentrant {
              // allow it to be 0, for post-mint
              limitSupply = _limitSupply;
              emit LimitSupplySet(_limitSupply);
              observability.emitLimitSupplySet(_limitSupply);
          }
          /**
           * @notice Set contract name
           * @param newName New name
           * @param newSymbol New symbol
           * @param newContractUri New contractURI
           */
          function setContractMetadata(
              string calldata newName,
              string calldata newSymbol,
              string calldata newContractUri
          ) external onlyOwner {
              _setContractMetadata(newName, newSymbol);
              contractURI = newContractUri;
              observability.emitContractMetadataSet(newName, newSymbol, newContractUri);
          }
          /**
           * @notice Return the total number of minted tokens on the collection
           */
          function supply() external view returns (uint256) {
              return ERC721AUpgradeable._totalMinted();
          }
          /**
           * @notice See {IERC721-burn}. Overrides default behaviour to check associated tokenManager.
           */
          function burn(uint256 tokenId) public nonReentrant {
              address _manager = tokenManager(tokenId);
              address msgSender = _msgSender();
              if (_manager != address(0) && IERC165Upgradeable(_manager).supportsInterface(type(IPostBurn).interfaceId)) {
                  address owner = ownerOf(tokenId);
                  IPostBurn(_manager).postBurn(msgSender, owner, tokenId);
              } else {
                  // default to restricting burn to owner or operator if a valid TM isn't present
                  if (!_isApprovedOrOwner(msgSender, tokenId)) {
                      _revert(Unauthorized.selector);
                  }
              }
              _burn(tokenId);
              observability.emitTransfer(msgSender, address(0), tokenId);
          }
          /**
           * @notice Overrides tokenURI to first rotate the token id
           * @param tokenId ID of token to get uri for
           */
          function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
              if (customRendererConfig.renderer != address(0)) {
                  return IHLRenderer(customRendererConfig.renderer).tokenURI(tokenId);
              }
              return ERC721AURIStorageUpgradeable.tokenURI(tokenId);
          }
          /**
           * @notice See {IERC165-supportsInterface}.
           */
          function supportsInterface(
              bytes4 interfaceId
          ) public view virtual override(IERC165Upgradeable, ERC721AUpgradeable) returns (bool) {
              return ERC721AUpgradeable.supportsInterface(interfaceId);
          }
          /**
           * @notice Hook called after transfers
           * @param from Account token is being transferred from
           * @param to Account token is being transferred to
           * @param tokenId ID of token being transferred
           */
          function _afterTokenTransfers(address from, address to, uint256 tokenId) internal override {
              address _manager = tokenManager(tokenId);
              if (_manager != address(0) && IERC165Upgradeable(_manager).supportsInterface(type(IPostTransfer).interfaceId)) {
                  IPostTransfer(_manager).postSafeTransferFrom(_msgSender(), from, to, tokenId, "");
              }
              observability.emitTransfer(from, to, tokenId);
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgSender() internal view virtual override(ERC721Base, ContextUpgradeable) returns (address sender) {
              return ERC2771ContextUpgradeable._msgSender();
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgData() internal view virtual override(ERC721Base, ContextUpgradeable) returns (bytes calldata) {
              return ERC2771ContextUpgradeable._msgData();
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure virtual override(ERC721AUpgradeable, ERC721Base) {
              ERC721AUpgradeable._revert(errorSelector);
          }
          /**
           * @notice Override base URI system for select tokens, with custom per-token metadata
           * @param tokenId Token to set uri for
           * @param _uri Uri to set on token
           */
          function _setTokenURI(uint256 tokenId, string calldata _uri) private {
              address _manager = tokenManager(tokenId);
              address msgSender = _msgSender();
              address tempOwner = owner();
              if (_manager == address(0)) {
                  if (msgSender != tempOwner) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!ITokenManager(_manager).canUpdateMetadata(msgSender, tokenId, bytes(_uri))) {
                      _revert(Unauthorized.selector);
                  }
              }
              _tokenURIs[tokenId] = _uri;
          }
          /**
           * @notice Require the new supply of tokens after mint to be less than limit supply
           * @param newSupply New supply
           */
          function _requireLimitSupply(uint256 newSupply) internal view {
              uint256 _limitSupply = limitSupply;
              if (_limitSupply != 0 && newSupply > _limitSupply) {
                  _revert(OverLimitSupply.selector);
              }
          }
      }
      //SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @notice Highlight's custom renderer interface for collections
       */
      interface IHLRenderer {
          /**
           * @notice Process a mint to multiple recipients (likely store mint details)
           * @dev Implementations should assume msg.sender to be the NFT contract
           * @param firstTokenId ID of first token to be minted (next ones are minted sequentially)
           * @param numTokensPerRecipient Number of tokens minted to each recipient
           * @param orderedRecipients Recipients to mint tokens to, sequentially
           */
          function processMultipleRecipientMint(
              uint256 firstTokenId,
              uint256 numTokensPerRecipient,
              address[] calldata orderedRecipients
          ) external;
          /**
           * @notice Process a mint to one recipient (likely store mint details)
           * @dev Implementations should assume msg.sender to be the NFT contract
           * @param firstTokenId ID of first token to be minted (next ones are minted sequentially)
           * @param numTokens Number of tokens minted
           * @param recipient Recipient to mint to
           */
          function processOneRecipientMint(uint256 firstTokenId, uint256 numTokens, address recipient) external;
          /**
           * @notice Return token metadata for a token
           * @dev Implementations should assume msg.sender to be the NFT contract
           * @param tokenId ID of token to return metadata for
           */
          function tokenURI(uint256 tokenId) external view returns (string memory);
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @notice General721 mint interface
       * @author highlight.xyz
       */
      interface IERC721GeneralMint {
          /**
           * @notice Mint one token to one recipient
           * @param recipient Recipient of minted NFT
           */
          function mintOneToOneRecipient(address recipient) external returns (uint256);
          /**
           * @notice Mint an amount of tokens to one recipient
           * @param recipient Recipient of minted NFTs
           * @param amount Amount of NFTs minted
           */
          function mintAmountToOneRecipient(address recipient, uint256 amount) external;
          /**
           * @notice Mint one token to multiple recipients. Useful for use-cases like airdrops
           * @param recipients Recipients of minted NFTs
           */
          function mintOneToMultipleRecipients(address[] calldata recipients) external;
          /**
           * @notice Mint the same amount of tokens to multiple recipients
           * @param recipients Recipients of minted NFTs
           * @param amount Amount of NFTs minted to each recipient
           */
          function mintSameAmountToMultipleRecipients(address[] calldata recipients, uint256 amount) external;
          /**
           * @notice Mint a chosen token id to a single recipient
           * @param recipient Recipient of chosen NFT
           * @param tokenId ID of NFT to mint
           */
          function mintSpecificTokenToOneRecipient(address recipient, uint256 tokenId) external;
          /**
           * @notice Mint chosen token ids to a single recipient
           * @param recipient Recipient of chosen NFT
           * @param tokenIds IDs of NFTs to mint
           */
          function mintSpecificTokensToOneRecipient(address recipient, uint256[] calldata tokenIds) external;
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @notice General721 mint interface for sequentially minted collections
       * @author highlight.xyz
       */
      interface IERC721GeneralSequenceMint {
          /**
           * @notice Mint one token to one recipient
           * @param recipient Recipient of minted NFT
           */
          function mintOneToOneRecipient(address recipient) external returns (uint256);
          /**
           * @notice Mint an amount of tokens to one recipient
           * @param recipient Recipient of minted NFTs
           * @param amount Amount of NFTs minted
           */
          function mintAmountToOneRecipient(address recipient, uint256 amount) external;
          /**
           * @notice Mint one token to multiple recipients. Useful for use-cases like airdrops
           * @param recipients Recipients of minted NFTs
           */
          function mintOneToMultipleRecipients(address[] calldata recipients) external;
          /**
           * @notice Mint the same amount of tokens to multiple recipients
           * @param recipients Recipients of minted NFTs
           * @param amount Amount of NFTs minted to each recipient
           */
          function mintSameAmountToMultipleRecipients(address[] calldata recipients, uint256 amount) external;
      }
      //SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @notice From MathCastles deployment
       */
      library Bytecode {
          error InvalidCodeAtRange(uint256 _size, uint256 _start, uint256 _end);
          /**
          @notice Generate a creation code that results on a contract with `_code` as bytecode
          @param _code The returning value of the resulting `creationCode`
          @return creationCode (constructor) for new contract
        */
          function creationCodeFor(bytes memory _code) internal pure returns (bytes memory) {
              /*
            0x00    0x63         0x63XXXXXX  PUSH4 _code.length  size
            0x01    0x80         0x80        DUP1                size size
            0x02    0x60         0x600e      PUSH1 14            14 size size
            0x03    0x60         0x6000      PUSH1 00            0 14 size size
            0x04    0x39         0x39        CODECOPY            size
            0x05    0x60         0x6000      PUSH1 00            0 size
            0x06    0xf3         0xf3        RETURN
            <CODE>
          */
              return abi.encodePacked(hex"63", uint32(_code.length), hex"80_60_0E_60_00_39_60_00_F3", _code);
          }
          /**
          @notice Returns the size of the code on a given address
          @param _addr Address that may or may not contain code
          @return size of the code on the given `_addr`
        */
          function codeSize(address _addr) internal view returns (uint256 size) {
              assembly {
                  size := extcodesize(_addr)
              }
          }
          /**
          @notice Returns the code of a given address
          @dev It will fail if `_end < _start`
          @param _addr Address that may or may not contain code
          @param _start number of bytes of code to skip on read
          @param _end index before which to end extraction
          @return oCode read from `_addr` deployed bytecode
          Forked from: https://gist.github.com/KardanovIR/fe98661df9338c842b4a30306d507fbd
        */
          function codeAt(address _addr, uint256 _start, uint256 _end) internal view returns (bytes memory oCode) {
              uint256 csize = codeSize(_addr);
              if (csize == 0) return bytes("");
              if (_start > csize) return bytes("");
              if (_end < _start) revert InvalidCodeAtRange(csize, _start, _end);
              unchecked {
                  uint256 reqSize = _end - _start;
                  uint256 maxSize = csize - _start;
                  uint256 size = maxSize < reqSize ? maxSize : reqSize;
                  assembly {
                      // allocate output byte array - this could also be done without assembly
                      // by using o_code = new bytes(size)
                      oCode := mload(0x40)
                      // new "memory end" including padding
                      mstore(0x40, add(oCode, and(add(add(size, 0x20), 0x1f), not(0x1f))))
                      // store length in memory
                      mstore(oCode, size)
                      // actually retrieve the code, this needs assembly
                      extcodecopy(_addr, add(oCode, 0x20), _start, size)
                  }
              }
          }
      }
      //SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "./Bytecode.sol";
      import { OwnableUpgradeable } from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
      /**
       * @title Onchain File Storage
       * @notice Introduces file handling to place utilities onchain
       * @author highlight.xyz
       */
      abstract contract OnchainFileStorage is OwnableUpgradeable {
          /**
           * @notice File existence errors
           */
          error FileAlreadyRegistered();
          error FileNotRegistered();
          /**
           * @notice File storage
           * @dev File-scoped bytecode addresses (pointers) holding contents
           */
          mapping(bytes => address[]) private _fileStorage;
          /**
           * @notice File storage path names
           * @dev Store registered file names (all will be present as keys in `fileStorage`)
           */
          bytes[] private _files;
          /**
           * @notice Add a file via its name and associated storage bytecode addresses
           */
          function addFile(string calldata fileName, address[] calldata fileStorageAddresses) external onlyOwner {
              bytes memory _fileName = bytes(fileName);
              if (_fileStorage[_fileName].length != 0) {
                  _revert(FileAlreadyRegistered.selector);
              }
              _files.push(_fileName);
              _fileStorage[_fileName] = fileStorageAddresses;
          }
          /**
           * @notice Remove a file from registered list of file names, and its associated storage bytecode addresses
           */
          function removeFile(string calldata fileName) external onlyOwner {
              bytes memory _fileName = bytes(fileName);
              if (_fileStorage[_fileName].length == 0) {
                  _revert(FileNotRegistered.selector);
              }
              bytes[] memory oldFiles = _files;
              bytes[] memory newFiles = new bytes[](oldFiles.length - 1);
              uint256 fileIndexOffset = 0;
              uint256 oldFilesLength = oldFiles.length;
              for (uint256 i = 0; i < oldFilesLength; i++) {
                  if (keccak256(oldFiles[i]) == keccak256(_fileName)) {
                      fileIndexOffset = 1;
                  } else {
                      newFiles[i - fileIndexOffset] = oldFiles[i];
                  }
              }
              _files = newFiles;
              delete _fileStorage[_fileName];
          }
          /**
           * @notice Return registered file names
           */
          function files() external view returns (string[] memory) {
              bytes[] memory fileNames = _files;
              string[] memory fileNamesHumanReadable = new string[](fileNames.length);
              for (uint256 i = 0; i < fileNames.length; i++) {
                  fileNamesHumanReadable[i] = string(fileNames[i]);
              }
              return fileNamesHumanReadable;
          }
          /**
           * @notice Return storage bytecode addresses for a file
           */
          function fileStorage(string calldata fileName) external view returns (address[] memory) {
              bytes memory _fileName = bytes(fileName);
              if (_fileStorage[_fileName].length == 0) {
                  _revert(FileNotRegistered.selector);
              }
              return _fileStorage[bytes(fileName)];
          }
          /**
           * @notice Return file contents
           */
          function fileContents(string calldata fileName) external view returns (string memory) {
              bytes memory _fileName = bytes(fileName);
              if (_fileStorage[_fileName].length == 0) {
                  _revert(FileNotRegistered.selector);
              }
              address[] memory fileStorageAddresses = _fileStorage[bytes(fileName)];
              uint256 fileStorageAddressesLength = fileStorageAddresses.length;
              string memory contents = "";
              // @author of the following section: @xaltgeist (0x16cc845d144a283d1b0687fbac8b0601cc47a6c3 on Ethereum mainnet)
              // edited with HL FS -like variable names
              uint256 size;
              uint ptr = 0x20;
              address currentChunk;
              unchecked {
                  // solhint-disable-next-line no-inline-assembly
                  assembly {
                      contents := mload(0x40)
                  }
                  for (uint i = 0; i < fileStorageAddressesLength; i++) {
                      currentChunk = fileStorageAddresses[i];
                      size = Bytecode.codeSize(currentChunk) - 1;
                      // solhint-disable-next-line no-inline-assembly
                      assembly {
                          extcodecopy(currentChunk, add(contents, ptr), 1, size)
                      }
                      ptr += size;
                  }
                  // solhint-disable-next-line no-inline-assembly
                  assembly {
                      // allocate output byte array - this could also be done without assembly
                      // by using o_code = new bytes(size)
                      // new "memory end" including padding
                      mstore(0x40, add(contents, and(add(ptr, 0x1f), not(0x1f))))
                      // store length in memory
                      mstore(contents, sub(ptr, 0x20))
                  }
              }
              return contents;
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure virtual {
              assembly {
                  mstore(0x00, errorSelector)
                  revert(0x00, 0x04)
              }
          }
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @dev Utilities for metadata encryption and decryption
       * @author highlight.xyz
       */
      abstract contract MetadataEncryption {
          /// @dev See: https://ethereum.stackexchange.com/questions/69825/decrypt-message-on-chain
          function encryptDecrypt(bytes memory data, bytes calldata key) public pure returns (bytes memory result) {
              // Store data length on stack for later use
              uint256 length = data.length;
              // solhint-disable-next-line no-inline-assembly
              assembly {
                  // Set result to free memory pointer
                  result := mload(0x40)
                  // Increase free memory pointer by lenght + 32
                  mstore(0x40, add(add(result, length), 32))
                  // Set result length
                  mstore(result, length)
              }
              // Iterate over the data stepping by 32 bytes
              for (uint256 i = 0; i < length; i += 32) {
                  // Generate hash of the key and offset
                  bytes32 hash = keccak256(abi.encodePacked(key, i));
                  bytes32 chunk;
                  // solhint-disable-next-line no-inline-assembly
                  assembly {
                      // Read 32-bytes data chunk
                      chunk := mload(add(data, add(i, 32)))
                  }
                  // XOR the chunk with hash
                  chunk ^= hash;
                  // solhint-disable-next-line no-inline-assembly
                  assembly {
                      // Write 32-byte encrypted chunk
                      mstore(add(result, add(i, 32)), chunk)
                  }
              }
          }
          function _sliceUint(bytes memory bs, uint256 start) internal pure returns (uint256) {
              require(bs.length >= start + 32, "slicing out of range");
              uint256 x;
              assembly {
                  x := mload(add(bs, add(0x20, start)))
              }
              return x;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.5.0) (metatx/ERC2771Context.sol)
      pragma solidity 0.8.10;
      import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
      /**
       * @dev Context variant with ERC2771 support.
       *      Openzeppelin contract slightly modified by ishan@ highlight.xyz to be upgradeable.
       */
      abstract contract ERC2771ContextUpgradeable is Initializable {
          address private _trustedForwarder;
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[49] private __gap;
          function isTrustedForwarder(address forwarder) public view virtual returns (bool) {
              return forwarder == _trustedForwarder;
          }
          function __ERC2771ContextUpgradeable__init__(address trustedForwarder) internal onlyInitializing {
              _trustedForwarder = trustedForwarder;
          }
          function _msgSender() internal view virtual returns (address sender) {
              if (isTrustedForwarder(msg.sender)) {
                  // The assembly code is more direct than the Solidity version using `abi.decode`.
                  /* solhint-disable no-inline-assembly */
                  assembly {
                      sender := shr(96, calldataload(sub(calldatasize(), 20)))
                  }
                  /* solhint-enable no-inline-assembly */
              } else {
                  return msg.sender;
              }
          }
          function _msgData() internal view virtual returns (bytes calldata) {
              if (isTrustedForwarder(msg.sender)) {
                  return msg.data[:msg.data.length - 20];
              } else {
                  return msg.data;
              }
          }
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "../royaltyManager/interfaces/IRoyaltyManager.sol";
      /**
       * @title IObservability
       * @author highlight.xyz
       * @notice Interface to interact with the Highlight observability singleton
       * @dev Singleton to coalesce select Highlight protocol events
       */
      interface IObservability {
          /**************************
            ERC721Base / ERC721MinimizedBase events
           **************************/
          /**
           * @notice Emitted when minter is registered or unregistered
           * @param contractAddress Initial contract that emitted event
           * @param minter Minter that was changed
           * @param registered True if the minter was registered, false if unregistered
           */
          event MinterRegistrationChanged(address indexed contractAddress, address indexed minter, bool indexed registered);
          /**
           * @notice Emitted when token managers are set for token/edition ids
           * @param contractAddress Initial contract that emitted event
           * @param _ids Edition / token ids
           * @param _tokenManagers Token managers to set for tokens / editions
           */
          event GranularTokenManagersSet(address indexed contractAddress, uint256[] _ids, address[] _tokenManagers);
          /**
           * @notice Emitted when token managers are removed for token/edition ids
           * @param contractAddress Initial contract that emitted event
           * @param _ids Edition / token ids to remove token managers for
           */
          event GranularTokenManagersRemoved(address indexed contractAddress, uint256[] _ids);
          /**
           * @notice Emitted when default token manager changed
           * @param contractAddress Initial contract that emitted event
           * @param newDefaultTokenManager New default token manager. Zero address if old one was removed
           */
          event DefaultTokenManagerChanged(address indexed contractAddress, address indexed newDefaultTokenManager);
          /**
           * @notice Emitted when default royalty is set
           * @param contractAddress Initial contract that emitted event
           * @param recipientAddress Royalty recipient
           * @param royaltyPercentageBPS Percentage of sale (in basis points) owed to royalty recipient
           */
          event DefaultRoyaltySet(
              address indexed contractAddress,
              address indexed recipientAddress,
              uint16 indexed royaltyPercentageBPS
          );
          /**
           * @notice Emitted when royalties are set for edition / token ids
           * @param contractAddress Initial contract that emitted event
           * @param ids Token / edition ids
           * @param _newRoyalties New royalties for each token / edition
           */
          event GranularRoyaltiesSet(address indexed contractAddress, uint256[] ids, IRoyaltyManager.Royalty[] _newRoyalties);
          /**
           * @notice Emitted when royalty manager is updated
           * @param contractAddress Initial contract that emitted event
           * @param newRoyaltyManager New royalty manager. Zero address if old one was removed
           */
          event RoyaltyManagerChanged(address indexed contractAddress, address indexed newRoyaltyManager);
          /**
           * @notice Emitted when mints are frozen permanently
           * @param contractAddress Initial contract that emitted event
           */
          event MintsFrozen(address indexed contractAddress);
          /**
           * @notice Emitted when contract metadata is set
           * @param contractAddress Initial contract that emitted event
           * @param name New name
           * @param symbol New symbol
           * @param contractURI New contract uri
           */
          event ContractMetadataSet(address indexed contractAddress, string name, string symbol, string contractURI);
          /**************************
            ERC721General events
           **************************/
          /**
           * @notice Emitted when hashed metadata config is set
           * @param contractAddress Initial contract that emitted event
           * @param hashedURIData Hashed uri data
           * @param hashedRotationData Hashed rotation key
           * @param _supply Supply of tokens to mint w/ reveal
           */
          event HashedMetadataConfigSet(
              address indexed contractAddress,
              bytes hashedURIData,
              bytes hashedRotationData,
              uint256 indexed _supply
          );
          /**
           * @notice Emitted when metadata is revealed
           * @param contractAddress Initial contract that emitted event
           * @param key Key used to decode hashed data
           * @param newRotationKey Actual rotation key to be used
           */
          event Revealed(address indexed contractAddress, bytes key, uint256 newRotationKey);
          /**************************
            ERC721GeneralBase events
           **************************/
          /**
           * @notice Emitted when uris are set for tokens
           * @param contractAddress Initial contract that emitted event
           * @param ids IDs of tokens to set uris for
           * @param uris Uris to set on tokens
           */
          event TokenURIsSet(address indexed contractAddress, uint256[] ids, string[] uris);
          /**
           * @notice Emitted when limit supply is set
           * @param contractAddress Initial contract that emitted event
           * @param newLimitSupply Limit supply to set
           */
          event LimitSupplySet(address indexed contractAddress, uint256 indexed newLimitSupply);
          /**************************
            ERC721StorageUri events
           **************************/
          /**
           * @notice Emits when a series collection has its base uri set
           * @param contractAddress Contract with updated base uri
           * @param newBaseUri New base uri
           */
          event BaseUriSet(address indexed contractAddress, string newBaseUri);
          /**************************
            ERC721Editions / ERC721SingleEdition events
           **************************/
          // Not adding EditionCreated, EditionMintedToOneRecipient, EditionMintedToRecipients
          // EditionCreated - handled by MetadataInitialized
          // EditionMintedToOneRecipient / EditionMintedToRecipients - handled via mint module events
          /**************************
            Deployment events
           **************************/
          /**
           * @notice Emitted when Generative Series contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event GenerativeSeriesDeployed(address indexed deployer, address indexed contractAddress);
          /**
           * @notice Emitted when Series contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event SeriesDeployed(address indexed deployer, address indexed contractAddress);
          /**
           * @notice Emitted when MultipleEditions contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event MultipleEditionsDeployed(address indexed deployer, address indexed contractAddress);
          /**
           * @notice Emitted when SingleEdition contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event SingleEditionDeployed(address indexed deployer, address indexed contractAddress);
          /**************************
            ERC721 events
           **************************/
          /**
           * @notice Emitted when `tokenId` token is transferred from `from` to `to` on contractAddress
           * @param contractAddress NFT contract token resides on
           * @param from Token sender
           * @param to Token receiver
           * @param tokenId Token being sent
           */
          event Transfer(address indexed contractAddress, address indexed from, address to, uint256 indexed tokenId);
          /**
           * @notice Emit MinterRegistrationChanged
           */
          function emitMinterRegistrationChanged(address minter, bool registered) external;
          /**
           * @notice Emit GranularTokenManagersSet
           */
          function emitGranularTokenManagersSet(uint256[] calldata _ids, address[] calldata _tokenManagers) external;
          /**
           * @notice Emit GranularTokenManagersRemoved
           */
          function emitGranularTokenManagersRemoved(uint256[] calldata _ids) external;
          /**
           * @notice Emit DefaultTokenManagerChanged
           */
          function emitDefaultTokenManagerChanged(address newDefaultTokenManager) external;
          /**
           * @notice Emit DefaultRoyaltySet
           */
          function emitDefaultRoyaltySet(address recipientAddress, uint16 royaltyPercentageBPS) external;
          /**
           * @notice Emit GranularRoyaltiesSet
           */
          function emitGranularRoyaltiesSet(
              uint256[] calldata ids,
              IRoyaltyManager.Royalty[] calldata _newRoyalties
          ) external;
          /**
           * @notice Emit RoyaltyManagerChanged
           */
          function emitRoyaltyManagerChanged(address newRoyaltyManager) external;
          /**
           * @notice Emit MintsFrozen
           */
          function emitMintsFrozen() external;
          /**
           * @notice Emit ContractMetadataSet
           */
          function emitContractMetadataSet(
              string calldata name,
              string calldata symbol,
              string calldata contractURI
          ) external;
          /**
           * @notice Emit HashedMetadataConfigSet
           */
          function emitHashedMetadataConfigSet(
              bytes calldata hashedURIData,
              bytes calldata hashedRotationData,
              uint256 _supply
          ) external;
          /**
           * @notice Emit Revealed
           */
          function emitRevealed(bytes calldata key, uint256 newRotationKey) external;
          /**
           * @notice Emit TokenURIsSet
           */
          function emitTokenURIsSet(uint256[] calldata ids, string[] calldata uris) external;
          /**
           * @notice Emit LimitSupplySet
           */
          function emitLimitSupplySet(uint256 newLimitSupply) external;
          /**
           * @notice Emit BaseUriSet
           */
          function emitBaseUriSet(string calldata newBaseUri) external;
          /**
           * @notice Emit GenerativeSeriesDeployed
           */
          function emitGenerativeSeriesDeployed(address contractAddress) external;
          /**
           * @notice Emit SeriesDeployed
           */
          function emitSeriesDeployed(address contractAddress) external;
          /**
           * @notice Emit MultipleEditionsDeployed
           */
          function emitMultipleEditionsDeployed(address contractAddress) external;
          /**
           * @notice Emit SingleEditionDeployed
           */
          function emitSingleEditionDeployed(address contractAddress) external;
          /**
           * @notice Emit Transfer
           */
          function emitTransfer(address from, address to, uint256 tokenId) external;
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @title IRoyaltyManager
       * @author highlight.xyz
       * @notice Enables interfacing with custom royalty managers that define conditions on setting royalties for
       *         NFT contracts
       */
      interface IRoyaltyManager {
          /**
           * @notice Struct containing values required to adhere to ERC-2981
           * @param recipientAddress Royalty recipient - can be EOA, royalty splitter contract, etc.
           * @param royaltyPercentageBPS Royalty cut, in basis points
           */
          struct Royalty {
              address recipientAddress;
              uint16 royaltyPercentageBPS;
          }
          /**
           * @notice Defines conditions around being able to swap royalty manager for another one
           * @param newRoyaltyManager New royalty manager being swapped in
           * @param sender msg sender
           */
          function canSwap(address newRoyaltyManager, address sender) external view returns (bool);
          /**
           * @notice Defines conditions around being able to remove current royalty manager
           * @param sender msg sender
           */
          function canRemoveItself(address sender) external view returns (bool);
          /**
           * @notice Defines conditions around being able to set granular royalty (per token or per edition)
           * @param id Edition / token ID whose royalty is being set
           * @param royalty Royalty being set
           * @param sender msg sender
           */
          function canSetGranularRoyalty(uint256 id, Royalty calldata royalty, address sender) external view returns (bool);
          /**
           * @notice Defines conditions around being able to set default royalty
           * @param royalty Royalty being set
           * @param sender msg sender
           */
          function canSetDefaultRoyalty(Royalty calldata royalty, address sender) external view returns (bool);
      }
      // SPDX-License-Identifier: MIT
      pragma solidity 0.8.10;
      /**
       * @author highlight.xyz
       * @notice If token managers implement this, transfer actions will call
       *      postBurn on the token manager.
       */
      interface IPostBurn {
          /**
           * @notice Hook called by contract after burn, if token manager of burned token implements this
           *      interface.
           * @param operator Operator burning tokens
           * @param sender Msg sender
           * @param id Burned token's id or id of edition of token that is burned
           */
          function postBurn(address operator, address sender, uint256 id) external;
      }
      // SPDX-License-Identifier: MIT
      pragma solidity 0.8.10;
      /**
       * @author highlight.xyz
       * @notice If token managers implement this, transfer actions will call
       *      postSafeTransferFrom or postTransferFrom on the token manager.
       */
      interface IPostTransfer {
          /**
           * @notice Hook called by community after safe transfers, if token manager of transferred token implements this
           *      interface.
           * @param operator Operator transferring tokens
           * @param from Token(s) sender
           * @param to Token(s) recipient
           * @param id Transferred token's id
           * @param data Arbitrary data
           */
          function postSafeTransferFrom(address operator, address from, address to, uint256 id, bytes memory data) external;
          /**
           * @notice Hook called by community after transfers, if token manager of transferred token implements
           *         this interface.
           * @param operator Operator transferring tokens
           * @param from Token(s) sender
           * @param to Token(s) recipient
           * @param id Transferred token's id
           */
          function postTransferFrom(address operator, address from, address to, uint256 id) external;
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @title ITokenManager
       * @author highlight.xyz
       * @notice Enables interfacing with custom token managers
       */
      interface ITokenManager {
          /**
           * @notice Returns whether metadata updater is allowed to update
           * @param sender Updater
           * @param id Token/edition who's uri is being updated
           *           If id is 0, implementation should decide behaviour for base uri update
           * @param newData Token's new uri if called by general contract, and any metadata field if called by editions
           * @return If invocation can update metadata
           */
          function canUpdateMetadata(address sender, uint256 id, bytes calldata newData) external returns (bool);
          /**
           * @notice Returns whether token manager can be swapped for another one by invocator
           * @notice Default token manager implementations should ignore id
           * @param sender Swapper
           * @param id Token grouping id (token id or edition id)
           * @param newTokenManager New token manager being swapped to
           * @return If invocation can swap token managers
           */
          function canSwap(address sender, uint256 id, address newTokenManager) external returns (bool);
          /**
           * @notice Returns whether token manager can be removed
           * @notice Default token manager implementations should ignore id
           * @param sender Swapper
           * @param id Token grouping id (token id or edition id)
           * @return If invocation can remove token manager
           */
          function canRemoveItself(address sender, uint256 id) external returns (bool);
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165Checker.sol)
      pragma solidity 0.8.10;
      import "./IERC165Upgradeable.sol";
      /**
       * @dev Library used to query support of an interface declared via {IERC165}.
       *
       * Note that these functions return the actual result of the query: they do not
       * `revert` if an interface is not supported. It is up to the caller to decide
       * what to do in these cases.
       */
      /* solhint-disable */
      library ERC165CheckerUpgradeable {
          // As per the EIP-165 spec, no interface should ever match 0xffffffff
          bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;
          /**
           * @dev Returns true if `account` supports the {IERC165} interface,
           */
          function supportsERC165(address account) internal view returns (bool) {
              // Any contract that implements ERC165 must explicitly indicate support of
              // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid
              return
                  supportsERC165InterfaceUnchecked(account, type(IERC165Upgradeable).interfaceId) &&
                  !supportsERC165InterfaceUnchecked(account, _INTERFACE_ID_INVALID);
          }
          /**
           * @dev Returns true if `account` supports the interface defined by
           * `interfaceId`. Support for {IERC165} itself is queried automatically.
           *
           * See {IERC165-supportsInterface}.
           */
          function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) {
              // query support of both ERC165 as per the spec and support of _interfaceId
              return supportsERC165(account) && supportsERC165InterfaceUnchecked(account, interfaceId);
          }
          /**
           * @dev Returns a boolean array where each value corresponds to the
           * interfaces passed in and whether they're supported or not. This allows
           * you to batch check interfaces for a contract where your expectation
           * is that some interfaces may not be supported.
           *
           * See {IERC165-supportsInterface}.
           *
           * _Available since v3.4._
           */
          function getSupportedInterfaces(
              address account,
              bytes4[] memory interfaceIds
          ) internal view returns (bool[] memory) {
              // an array of booleans corresponding to interfaceIds and whether they're supported or not
              bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);
              // query support of ERC165 itself
              if (supportsERC165(account)) {
                  // query support of each interface in interfaceIds
                  for (uint256 i = 0; i < interfaceIds.length; i++) {
                      interfaceIdsSupported[i] = supportsERC165InterfaceUnchecked(account, interfaceIds[i]);
                  }
              }
              return interfaceIdsSupported;
          }
          /**
           * @dev Returns true if `account` supports all the interfaces defined in
           * `interfaceIds`. Support for {IERC165} itself is queried automatically.
           *
           * Batch-querying can lead to gas savings by skipping repeated checks for
           * {IERC165} support.
           *
           * See {IERC165-supportsInterface}.
           */
          function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) {
              // query support of ERC165 itself
              if (!supportsERC165(account)) {
                  return false;
              }
              // query support of each interface in _interfaceIds
              for (uint256 i = 0; i < interfaceIds.length; i++) {
                  if (!supportsERC165InterfaceUnchecked(account, interfaceIds[i])) {
                      return false;
                  }
              }
              // all interfaces supported
              return true;
          }
          /**
           * @notice Query if a contract implements an interface, does not check ERC165 support
           * @param account The address of the contract to query for support of an interface
           * @param interfaceId The interface identifier, as specified in ERC-165
           * @return true if the contract at account indicates support of the interface with
           * identifier interfaceId, false otherwise
           * @dev Assumes that account contains a contract that supports ERC165, otherwise
           * the behavior of this method is undefined. This precondition can be checked
           * with {supportsERC165}.
           * Interface identification is specified in ERC-165.
           */
          function supportsERC165InterfaceUnchecked(address account, bytes4 interfaceId) internal view returns (bool) {
              // prepare call
              bytes memory encodedParams = abi.encodeWithSelector(IERC165Upgradeable.supportsInterface.selector, interfaceId);
              // perform static call
              bool success;
              uint256 returnSize;
              uint256 returnValue;
              assembly {
                  success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20)
                  returnSize := returndatasize()
                  returnValue := mload(0x00)
              }
              return success && returnSize >= 0x20 && returnValue > 0;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
      pragma solidity 0.8.10;
      /**
       * @dev Interface of the ERC165 standard, as defined in the
       * https://eips.ethereum.org/EIPS/eip-165[EIP].
       *
       * Implementers can declare support of contract interfaces, which can then be
       * queried by others ({ERC165Checker}).
       *
       * For an implementation, see {ERC165}.
       */
      /* solhint-disable */
      interface IERC165Upgradeable {
          /**
           * @dev Returns true if this contract implements the interface defined by
           * `interfaceId`. See the corresponding
           * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
           * to learn more about how these ids are created.
           *
           * This function call must use less than 30 000 gas.
           */
          function supportsInterface(bytes4 interfaceId) external view returns (bool);
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981Upgradeable.sol)
      pragma solidity 0.8.10;
      import "../ERC165/IERC165Upgradeable.sol";
      /**
       * @dev Interface for the NFT Royalty Standard.
       *
       * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
       * support for royalty payments across all NFT marketplaces and ecosystem participants.
       *
       * _Available since v4.5._
       */
      interface IERC2981Upgradeable is IERC165Upgradeable {
          /**
           * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
           * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
           */
          function royaltyInfo(
              uint256 tokenId,
              uint256 salePrice
          ) external view returns (address receiver, uint256 royaltyAmount);
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
      pragma solidity 0.8.10;
      import "@openzeppelin/contracts/utils/Context.sol";
      /**
       * @dev Contract module which provides a basic access control mechanism, where
       * there is an account (an owner) that can be granted exclusive access to
       * specific functions.
       *
       * By default, the owner account will be the one that deploys the contract. This
       * can later be changed with {transferOwnership}.
       *
       * This module is used through inheritance. It will make available the modifier
       * `onlyOwner`, which can be applied to your functions to restrict their use to
       * the owner.
       */
      /* solhint-disable */
      abstract contract Ownable is Context {
          address private _owner;
          event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
          /**
           * @dev Initializes the contract setting the deployer as the initial owner.
           */
          constructor() {
              _transferOwnership(_msgSender());
          }
          /**
           * @dev Throws if called by any account other than the owner.
           */
          modifier onlyOwner() {
              _checkOwner();
              _;
          }
          /**
           * @dev Returns the address of the current owner.
           */
          function owner() public view virtual returns (address) {
              return _owner;
          }
          /**
           * @dev Throws if the sender is not the owner.
           */
          function _checkOwner() internal view virtual {
              require(owner() == _msgSender(), "Ownable: caller is not the owner");
          }
          /**
           * @dev Leaves the contract without owner. It will not be possible to call
           * `onlyOwner` functions anymore. Can only be called by the current owner.
           *
           * NOTE: Renouncing ownership will leave the contract without an owner,
           * thereby removing any functionality that is only available to the owner.
           */
          function renounceOwnership() public virtual onlyOwner {
              _transferOwnership(address(0));
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Can only be called by the current owner.
           */
          function transferOwnership(address newOwner) public virtual onlyOwner {
              require(newOwner != address(0), "Ownable: new owner is the zero address");
              _transferOwnership(newOwner);
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Internal function without access restriction.
           */
          function _transferOwnership(address newOwner) internal virtual {
              address oldOwner = _owner;
              _owner = newOwner;
              emit OwnershipTransferred(oldOwner, newOwner);
          }
      }
      

      File 2 of 3: Observability
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "./IObservability.sol";
      /**
       * @title Observability
       * @author highlight.xyz
       * @notice Highlight Observability
       * @dev Singleton to coalesce select Highlight protocol events
       */
      contract Observability is IObservability {
          /**
           * @notice See {IObservability-emitMinterRegistrationChanged}
           */
          function emitMinterRegistrationChanged(address minter, bool registered) external {
              emit MinterRegistrationChanged(msg.sender, minter, registered);
          }
          /**
           * @notice See {IObservability-emitGranularTokenManagersSet}
           */
          function emitGranularTokenManagersSet(uint256[] calldata _ids, address[] calldata _tokenManagers) external {
              emit GranularTokenManagersSet(msg.sender, _ids, _tokenManagers);
          }
          /**
           * @notice See {IObservability-emitGranularTokenManagersRemoved}
           */
          function emitGranularTokenManagersRemoved(uint256[] calldata _ids) external {
              emit GranularTokenManagersRemoved(msg.sender, _ids);
          }
          /**
           * @notice See {IObservability-emitDefaultTokenManagerChanged}
           */
          function emitDefaultTokenManagerChanged(address newDefaultTokenManager) external {
              emit DefaultTokenManagerChanged(msg.sender, newDefaultTokenManager);
          }
          /**
           * @notice See {IObservability-emitDefaultRoyaltySet}
           */
          function emitDefaultRoyaltySet(address recipientAddress, uint16 royaltyPercentageBPS) external {
              emit DefaultRoyaltySet(msg.sender, recipientAddress, royaltyPercentageBPS);
          }
          /**
           * @notice See {IObservability-emitGranularRoyaltiesSet}
           */
          function emitGranularRoyaltiesSet(uint256[] calldata ids, IRoyaltyManager.Royalty[] calldata _newRoyalties)
              external
          {
              emit GranularRoyaltiesSet(msg.sender, ids, _newRoyalties);
          }
          /**
           * @notice See {IObservability-emitRoyaltyManagerChanged}
           */
          function emitRoyaltyManagerChanged(address newRoyaltyManager) external {
              emit RoyaltyManagerChanged(msg.sender, newRoyaltyManager);
          }
          /**
           * @notice See {IObservability-emitMintsFrozen}
           */
          function emitMintsFrozen() external {
              emit MintsFrozen(msg.sender);
          }
          /**
           * @notice See {IObservability-emitContractMetadataSet}
           */
          function emitContractMetadataSet(
              string calldata name,
              string calldata symbol,
              string calldata contractURI
          ) external {
              emit ContractMetadataSet(msg.sender, name, symbol, contractURI);
          }
          /**
           * @notice See {IObservability-emitHashedMetadataConfigSet}
           */
          function emitHashedMetadataConfigSet(
              bytes calldata hashedURIData,
              bytes calldata hashedRotationData,
              uint256 _supply
          ) external {
              emit HashedMetadataConfigSet(msg.sender, hashedURIData, hashedRotationData, _supply);
          }
          /**
           * @notice See {IObservability-emitRevealed}
           */
          function emitRevealed(bytes calldata key, uint256 newRotationKey) external {
              emit Revealed(msg.sender, key, newRotationKey);
          }
          /**
           * @notice See {IObservability-emitTokenURIsSet}
           */
          function emitTokenURIsSet(uint256[] calldata ids, string[] calldata uris) external {
              emit TokenURIsSet(msg.sender, ids, uris);
          }
          /**
           * @notice See {IObservability-emitLimitSupplySet}
           */
          function emitLimitSupplySet(uint256 newLimitSupply) external {
              emit LimitSupplySet(msg.sender, newLimitSupply);
          }
          /**
           * @notice See {IObservability-emitBaseUriSet}
           */
          function emitBaseUriSet(string calldata newBaseUri) external {
              emit BaseUriSet(msg.sender, newBaseUri);
          }
          /**
           * @notice See {IObservability-emitGenerativeSeriesDeployed}
           */
          function emitGenerativeSeriesDeployed(address contractAddress) external {
              emit GenerativeSeriesDeployed(msg.sender, contractAddress);
          }
          /**
           * @notice See {IObservability-emitSeriesDeployed}
           */
          function emitSeriesDeployed(address contractAddress) external {
              emit SeriesDeployed(msg.sender, contractAddress);
          }
          /**
           * @notice See {IObservability-emitMultipleEditionsDeployed}
           */
          function emitMultipleEditionsDeployed(address contractAddress) external {
              emit MultipleEditionsDeployed(msg.sender, contractAddress);
          }
          /**
           * @notice See {IObservability-emitSingleEditionDeployed}
           */
          function emitSingleEditionDeployed(address contractAddress) external {
              emit SingleEditionDeployed(msg.sender, contractAddress);
          }
          /**
           * @notice See {IObservability-emitTransfer}
           */
          function emitTransfer(
              address from,
              address to,
              uint256 tokenId
          ) external {
              emit Transfer(msg.sender, from, to, tokenId);
          }
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "../royaltyManager/interfaces/IRoyaltyManager.sol";
      /**
       * @title IObservability
       * @author highlight.xyz
       * @notice Interface to interact with the Highlight observability singleton
       * @dev Singleton to coalesce select Highlight protocol events
       */
      interface IObservability {
          /**************************
            ERC721Base / ERC721MinimizedBase events
           **************************/
          /**
           * @notice Emitted when minter is registered or unregistered
           * @param contractAddress Initial contract that emitted event
           * @param minter Minter that was changed
           * @param registered True if the minter was registered, false if unregistered
           */
          event MinterRegistrationChanged(address indexed contractAddress, address indexed minter, bool indexed registered);
          /**
           * @notice Emitted when token managers are set for token/edition ids
           * @param contractAddress Initial contract that emitted event
           * @param _ids Edition / token ids
           * @param _tokenManagers Token managers to set for tokens / editions
           */
          event GranularTokenManagersSet(address indexed contractAddress, uint256[] _ids, address[] _tokenManagers);
          /**
           * @notice Emitted when token managers are removed for token/edition ids
           * @param contractAddress Initial contract that emitted event
           * @param _ids Edition / token ids to remove token managers for
           */
          event GranularTokenManagersRemoved(address indexed contractAddress, uint256[] _ids);
          /**
           * @notice Emitted when default token manager changed
           * @param contractAddress Initial contract that emitted event
           * @param newDefaultTokenManager New default token manager. Zero address if old one was removed
           */
          event DefaultTokenManagerChanged(address indexed contractAddress, address indexed newDefaultTokenManager);
          /**
           * @notice Emitted when default royalty is set
           * @param contractAddress Initial contract that emitted event
           * @param recipientAddress Royalty recipient
           * @param royaltyPercentageBPS Percentage of sale (in basis points) owed to royalty recipient
           */
          event DefaultRoyaltySet(
              address indexed contractAddress,
              address indexed recipientAddress,
              uint16 indexed royaltyPercentageBPS
          );
          /**
           * @notice Emitted when royalties are set for edition / token ids
           * @param contractAddress Initial contract that emitted event
           * @param ids Token / edition ids
           * @param _newRoyalties New royalties for each token / edition
           */
          event GranularRoyaltiesSet(address indexed contractAddress, uint256[] ids, IRoyaltyManager.Royalty[] _newRoyalties);
          /**
           * @notice Emitted when royalty manager is updated
           * @param contractAddress Initial contract that emitted event
           * @param newRoyaltyManager New royalty manager. Zero address if old one was removed
           */
          event RoyaltyManagerChanged(address indexed contractAddress, address indexed newRoyaltyManager);
          /**
           * @notice Emitted when mints are frozen permanently
           * @param contractAddress Initial contract that emitted event
           */
          event MintsFrozen(address indexed contractAddress);
          /**
           * @notice Emitted when contract metadata is set
           * @param contractAddress Initial contract that emitted event
           * @param name New name
           * @param symbol New symbol
           * @param contractURI New contract uri
           */
          event ContractMetadataSet(address indexed contractAddress, string name, string symbol, string contractURI);
          /**************************
            ERC721General events
           **************************/
          /**
           * @notice Emitted when hashed metadata config is set
           * @param contractAddress Initial contract that emitted event
           * @param hashedURIData Hashed uri data
           * @param hashedRotationData Hashed rotation key
           * @param _supply Supply of tokens to mint w/ reveal
           */
          event HashedMetadataConfigSet(
              address indexed contractAddress,
              bytes hashedURIData,
              bytes hashedRotationData,
              uint256 indexed _supply
          );
          /**
           * @notice Emitted when metadata is revealed
           * @param contractAddress Initial contract that emitted event
           * @param key Key used to decode hashed data
           * @param newRotationKey Actual rotation key to be used
           */
          event Revealed(address indexed contractAddress, bytes key, uint256 newRotationKey);
          /**************************
            ERC721GeneralBase events
           **************************/
          /**
           * @notice Emitted when uris are set for tokens
           * @param contractAddress Initial contract that emitted event
           * @param ids IDs of tokens to set uris for
           * @param uris Uris to set on tokens
           */
          event TokenURIsSet(address indexed contractAddress, uint256[] ids, string[] uris);
          /**
           * @notice Emitted when limit supply is set
           * @param contractAddress Initial contract that emitted event
           * @param newLimitSupply Limit supply to set
           */
          event LimitSupplySet(address indexed contractAddress, uint256 indexed newLimitSupply);
          /**************************
            ERC721StorageUri events
           **************************/
          /**
           * @notice Emits when a series collection has its base uri set
           * @param contractAddress Contract with updated base uri
           * @param newBaseUri New base uri
           */
          event BaseUriSet(address indexed contractAddress, string newBaseUri);
          /**************************
            ERC721Editions / ERC721SingleEdition events
           **************************/
          // Not adding EditionCreated, EditionMintedToOneRecipient, EditionMintedToRecipients
          // EditionCreated - handled by MetadataInitialized
          // EditionMintedToOneRecipient / EditionMintedToRecipients - handled via mint module events
          /**************************
            Deployment events
           **************************/
          /**
           * @notice Emitted when Generative Series contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event GenerativeSeriesDeployed(address indexed deployer, address indexed contractAddress);
          /**
           * @notice Emitted when Series contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event SeriesDeployed(address indexed deployer, address indexed contractAddress);
          /**
           * @notice Emitted when MultipleEditions contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event MultipleEditionsDeployed(address indexed deployer, address indexed contractAddress);
          /**
           * @notice Emitted when SingleEdition contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event SingleEditionDeployed(address indexed deployer, address indexed contractAddress);
          /**************************
            ERC721 events
           **************************/
          /**
           * @notice Emitted when `tokenId` token is transferred from `from` to `to` on contractAddress
           * @param contractAddress NFT contract token resides on
           * @param from Token sender
           * @param to Token receiver
           * @param tokenId Token being sent
           */
          event Transfer(address indexed contractAddress, address indexed from, address to, uint256 indexed tokenId);
          /**
           * @notice Emit MinterRegistrationChanged
           */
          function emitMinterRegistrationChanged(address minter, bool registered) external;
          /**
           * @notice Emit GranularTokenManagersSet
           */
          function emitGranularTokenManagersSet(uint256[] calldata _ids, address[] calldata _tokenManagers) external;
          /**
           * @notice Emit GranularTokenManagersRemoved
           */
          function emitGranularTokenManagersRemoved(uint256[] calldata _ids) external;
          /**
           * @notice Emit DefaultTokenManagerChanged
           */
          function emitDefaultTokenManagerChanged(address newDefaultTokenManager) external;
          /**
           * @notice Emit DefaultRoyaltySet
           */
          function emitDefaultRoyaltySet(address recipientAddress, uint16 royaltyPercentageBPS) external;
          /**
           * @notice Emit GranularRoyaltiesSet
           */
          function emitGranularRoyaltiesSet(uint256[] calldata ids, IRoyaltyManager.Royalty[] calldata _newRoyalties)
              external;
          /**
           * @notice Emit RoyaltyManagerChanged
           */
          function emitRoyaltyManagerChanged(address newRoyaltyManager) external;
          /**
           * @notice Emit MintsFrozen
           */
          function emitMintsFrozen() external;
          /**
           * @notice Emit ContractMetadataSet
           */
          function emitContractMetadataSet(
              string calldata name,
              string calldata symbol,
              string calldata contractURI
          ) external;
          /**
           * @notice Emit HashedMetadataConfigSet
           */
          function emitHashedMetadataConfigSet(
              bytes calldata hashedURIData,
              bytes calldata hashedRotationData,
              uint256 _supply
          ) external;
          /**
           * @notice Emit Revealed
           */
          function emitRevealed(bytes calldata key, uint256 newRotationKey) external;
          /**
           * @notice Emit TokenURIsSet
           */
          function emitTokenURIsSet(uint256[] calldata ids, string[] calldata uris) external;
          /**
           * @notice Emit LimitSupplySet
           */
          function emitLimitSupplySet(uint256 newLimitSupply) external;
          /**
           * @notice Emit BaseUriSet
           */
          function emitBaseUriSet(string calldata newBaseUri) external;
          /**
           * @notice Emit GenerativeSeriesDeployed
           */
          function emitGenerativeSeriesDeployed(address contractAddress) external;
          /**
           * @notice Emit SeriesDeployed
           */
          function emitSeriesDeployed(address contractAddress) external;
          /**
           * @notice Emit MultipleEditionsDeployed
           */
          function emitMultipleEditionsDeployed(address contractAddress) external;
          /**
           * @notice Emit SingleEditionDeployed
           */
          function emitSingleEditionDeployed(address contractAddress) external;
          /**
           * @notice Emit Transfer
           */
          function emitTransfer(
              address from,
              address to,
              uint256 tokenId
          ) external;
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @title IRoyaltyManager
       * @author [email protected]
       * @notice Enables interfacing with custom royalty managers that define conditions on setting royalties for
       *         NFT contracts
       */
      interface IRoyaltyManager {
          /**
           * @notice Struct containing values required to adhere to ERC-2981
           * @param recipientAddress Royalty recipient - can be EOA, royalty splitter contract, etc.
           * @param royaltyPercentageBPS Royalty cut, in basis points
           */
          struct Royalty {
              address recipientAddress;
              uint16 royaltyPercentageBPS;
          }
          /**
           * @notice Defines conditions around being able to swap royalty manager for another one
           * @param newRoyaltyManager New royalty manager being swapped in
           * @param sender msg sender
           */
          function canSwap(address newRoyaltyManager, address sender) external view returns (bool);
          /**
           * @notice Defines conditions around being able to remove current royalty manager
           * @param sender msg sender
           */
          function canRemoveItself(address sender) external view returns (bool);
          /**
           * @notice Defines conditions around being able to set granular royalty (per token or per edition)
           * @param id Edition / token ID whose royalty is being set
           * @param royalty Royalty being set
           * @param sender msg sender
           */
          function canSetGranularRoyalty(
              uint256 id,
              Royalty calldata royalty,
              address sender
          ) external view returns (bool);
          /**
           * @notice Defines conditions around being able to set default royalty
           * @param royalty Royalty being set
           * @param sender msg sender
           */
          function canSetDefaultRoyalty(Royalty calldata royalty, address sender) external view returns (bool);
      }
      

      File 3 of 3: ERC721GeneralSequence
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
      pragma solidity ^0.8.0;
      import "../utils/ContextUpgradeable.sol";
      import "../proxy/utils/Initializable.sol";
      /**
       * @dev Contract module which provides a basic access control mechanism, where
       * there is an account (an owner) that can be granted exclusive access to
       * specific functions.
       *
       * By default, the owner account will be the one that deploys the contract. This
       * can later be changed with {transferOwnership}.
       *
       * This module is used through inheritance. It will make available the modifier
       * `onlyOwner`, which can be applied to your functions to restrict their use to
       * the owner.
       */
      abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
          address private _owner;
          event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
          /**
           * @dev Initializes the contract setting the deployer as the initial owner.
           */
          function __Ownable_init() internal onlyInitializing {
              __Ownable_init_unchained();
          }
          function __Ownable_init_unchained() internal onlyInitializing {
              _transferOwnership(_msgSender());
          }
          /**
           * @dev Throws if called by any account other than the owner.
           */
          modifier onlyOwner() {
              _checkOwner();
              _;
          }
          /**
           * @dev Returns the address of the current owner.
           */
          function owner() public view virtual returns (address) {
              return _owner;
          }
          /**
           * @dev Throws if the sender is not the owner.
           */
          function _checkOwner() internal view virtual {
              require(owner() == _msgSender(), "Ownable: caller is not the owner");
          }
          /**
           * @dev Leaves the contract without owner. It will not be possible to call
           * `onlyOwner` functions. Can only be called by the current owner.
           *
           * NOTE: Renouncing ownership will leave the contract without an owner,
           * thereby disabling any functionality that is only available to the owner.
           */
          function renounceOwnership() public virtual onlyOwner {
              _transferOwnership(address(0));
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Can only be called by the current owner.
           */
          function transferOwnership(address newOwner) public virtual onlyOwner {
              require(newOwner != address(0), "Ownable: new owner is the zero address");
              _transferOwnership(newOwner);
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Internal function without access restriction.
           */
          function _transferOwnership(address newOwner) internal virtual {
              address oldOwner = _owner;
              _owner = newOwner;
              emit OwnershipTransferred(oldOwner, newOwner);
          }
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[49] private __gap;
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
      pragma solidity ^0.8.2;
      import "../../utils/AddressUpgradeable.sol";
      /**
       * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
       * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
       * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
       * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
       *
       * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
       * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
       * case an upgrade adds a module that needs to be initialized.
       *
       * For example:
       *
       * [.hljs-theme-light.nopadding]
       * ```solidity
       * contract MyToken is ERC20Upgradeable {
       *     function initialize() initializer public {
       *         __ERC20_init("MyToken", "MTK");
       *     }
       * }
       *
       * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
       *     function initializeV2() reinitializer(2) public {
       *         __ERC20Permit_init("MyToken");
       *     }
       * }
       * ```
       *
       * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
       * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
       *
       * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
       * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
       *
       * [CAUTION]
       * ====
       * Avoid leaving a contract uninitialized.
       *
       * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
       * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
       * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
       *
       * [.hljs-theme-light.nopadding]
       * ```
       * /// @custom:oz-upgrades-unsafe-allow constructor
       * constructor() {
       *     _disableInitializers();
       * }
       * ```
       * ====
       */
      abstract contract Initializable {
          /**
           * @dev Indicates that the contract has been initialized.
           * @custom:oz-retyped-from bool
           */
          uint8 private _initialized;
          /**
           * @dev Indicates that the contract is in the process of being initialized.
           */
          bool private _initializing;
          /**
           * @dev Triggered when the contract has been initialized or reinitialized.
           */
          event Initialized(uint8 version);
          /**
           * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
           * `onlyInitializing` functions can be used to initialize parent contracts.
           *
           * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
           * constructor.
           *
           * Emits an {Initialized} event.
           */
          modifier initializer() {
              bool isTopLevelCall = !_initializing;
              require(
                  (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
                  "Initializable: contract is already initialized"
              );
              _initialized = 1;
              if (isTopLevelCall) {
                  _initializing = true;
              }
              _;
              if (isTopLevelCall) {
                  _initializing = false;
                  emit Initialized(1);
              }
          }
          /**
           * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
           * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
           * used to initialize parent contracts.
           *
           * A reinitializer may be used after the original initialization step. This is essential to configure modules that
           * are added through upgrades and that require initialization.
           *
           * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
           * cannot be nested. If one is invoked in the context of another, execution will revert.
           *
           * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
           * a contract, executing them in the right order is up to the developer or operator.
           *
           * WARNING: setting the version to 255 will prevent any future reinitialization.
           *
           * Emits an {Initialized} event.
           */
          modifier reinitializer(uint8 version) {
              require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
              _initialized = version;
              _initializing = true;
              _;
              _initializing = false;
              emit Initialized(version);
          }
          /**
           * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
           * {initializer} and {reinitializer} modifiers, directly or indirectly.
           */
          modifier onlyInitializing() {
              require(_initializing, "Initializable: contract is not initializing");
              _;
          }
          /**
           * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
           * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
           * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
           * through proxies.
           *
           * Emits an {Initialized} event the first time it is successfully executed.
           */
          function _disableInitializers() internal virtual {
              require(!_initializing, "Initializable: contract is initializing");
              if (_initialized != type(uint8).max) {
                  _initialized = type(uint8).max;
                  emit Initialized(type(uint8).max);
              }
          }
          /**
           * @dev Returns the highest version that has been initialized. See {reinitializer}.
           */
          function _getInitializedVersion() internal view returns (uint8) {
              return _initialized;
          }
          /**
           * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
           */
          function _isInitializing() internal view returns (bool) {
              return _initializing;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
      pragma solidity ^0.8.0;
      import "../proxy/utils/Initializable.sol";
      /**
       * @dev Contract module that helps prevent reentrant calls to a function.
       *
       * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
       * available, which can be applied to functions to make sure there are no nested
       * (reentrant) calls to them.
       *
       * Note that because there is a single `nonReentrant` guard, functions marked as
       * `nonReentrant` may not call one another. This can be worked around by making
       * those functions `private`, and then adding `external` `nonReentrant` entry
       * points to them.
       *
       * TIP: If you would like to learn more about reentrancy and alternative ways
       * to protect against it, check out our blog post
       * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
       */
      abstract contract ReentrancyGuardUpgradeable is Initializable {
          // Booleans are more expensive than uint256 or any type that takes up a full
          // word because each write operation emits an extra SLOAD to first read the
          // slot's contents, replace the bits taken up by the boolean, and then write
          // back. This is the compiler's defense against contract upgrades and
          // pointer aliasing, and it cannot be disabled.
          // The values being non-zero value makes deployment a bit more expensive,
          // but in exchange the refund on every call to nonReentrant will be lower in
          // amount. Since refunds are capped to a percentage of the total
          // transaction's gas, it is best to keep them low in cases like this one, to
          // increase the likelihood of the full refund coming into effect.
          uint256 private constant _NOT_ENTERED = 1;
          uint256 private constant _ENTERED = 2;
          uint256 private _status;
          function __ReentrancyGuard_init() internal onlyInitializing {
              __ReentrancyGuard_init_unchained();
          }
          function __ReentrancyGuard_init_unchained() internal onlyInitializing {
              _status = _NOT_ENTERED;
          }
          /**
           * @dev Prevents a contract from calling itself, directly or indirectly.
           * Calling a `nonReentrant` function from another `nonReentrant`
           * function is not supported. It is possible to prevent this from happening
           * by making the `nonReentrant` function external, and making it call a
           * `private` function that does the actual work.
           */
          modifier nonReentrant() {
              _nonReentrantBefore();
              _;
              _nonReentrantAfter();
          }
          function _nonReentrantBefore() private {
              // On the first call to nonReentrant, _status will be _NOT_ENTERED
              require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
              // Any calls to nonReentrant after this point will fail
              _status = _ENTERED;
          }
          function _nonReentrantAfter() private {
              // By storing the original value once again, a refund is triggered (see
              // https://eips.ethereum.org/EIPS/eip-2200)
              _status = _NOT_ENTERED;
          }
          /**
           * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
           * `nonReentrant` function in the call stack.
           */
          function _reentrancyGuardEntered() internal view returns (bool) {
              return _status == _ENTERED;
          }
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[49] private __gap;
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
      pragma solidity ^0.8.1;
      /**
       * @dev Collection of functions related to the address type
       */
      library AddressUpgradeable {
          /**
           * @dev Returns true if `account` is a contract.
           *
           * [IMPORTANT]
           * ====
           * It is unsafe to assume that an address for which this function returns
           * false is an externally-owned account (EOA) and not a contract.
           *
           * Among others, `isContract` will return false for the following
           * types of addresses:
           *
           *  - an externally-owned account
           *  - a contract in construction
           *  - an address where a contract will be created
           *  - an address where a contract lived, but was destroyed
           *
           * Furthermore, `isContract` will also return true if the target contract within
           * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
           * which only has an effect at the end of a transaction.
           * ====
           *
           * [IMPORTANT]
           * ====
           * You shouldn't rely on `isContract` to protect against flash loan attacks!
           *
           * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
           * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
           * constructor.
           * ====
           */
          function isContract(address account) internal view returns (bool) {
              // This method relies on extcodesize/address.code.length, which returns 0
              // for contracts in construction, since the code is only stored at the end
              // of the constructor execution.
              return account.code.length > 0;
          }
          /**
           * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
           * `recipient`, forwarding all available gas and reverting on errors.
           *
           * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
           * of certain opcodes, possibly making contracts go over the 2300 gas limit
           * imposed by `transfer`, making them unable to receive funds via
           * `transfer`. {sendValue} removes this limitation.
           *
           * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
           *
           * IMPORTANT: because control is transferred to `recipient`, care must be
           * taken to not create reentrancy vulnerabilities. Consider using
           * {ReentrancyGuard} or the
           * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
           */
          function sendValue(address payable recipient, uint256 amount) internal {
              require(address(this).balance >= amount, "Address: insufficient balance");
              (bool success, ) = recipient.call{value: amount}("");
              require(success, "Address: unable to send value, recipient may have reverted");
          }
          /**
           * @dev Performs a Solidity function call using a low level `call`. A
           * plain `call` is an unsafe replacement for a function call: use this
           * function instead.
           *
           * If `target` reverts with a revert reason, it is bubbled up by this
           * function (like regular Solidity function calls).
           *
           * Returns the raw returned data. To convert to the expected return value,
           * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
           *
           * Requirements:
           *
           * - `target` must be a contract.
           * - calling `target` with `data` must not revert.
           *
           * _Available since v3.1._
           */
          function functionCall(address target, bytes memory data) internal returns (bytes memory) {
              return functionCallWithValue(target, data, 0, "Address: low-level call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
           * `errorMessage` as a fallback revert reason when `target` reverts.
           *
           * _Available since v3.1._
           */
          function functionCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal returns (bytes memory) {
              return functionCallWithValue(target, data, 0, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but also transferring `value` wei to `target`.
           *
           * Requirements:
           *
           * - the calling contract must have an ETH balance of at least `value`.
           * - the called Solidity function must be `payable`.
           *
           * _Available since v3.1._
           */
          function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
              return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
          }
          /**
           * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
           * with `errorMessage` as a fallback revert reason when `target` reverts.
           *
           * _Available since v3.1._
           */
          function functionCallWithValue(
              address target,
              bytes memory data,
              uint256 value,
              string memory errorMessage
          ) internal returns (bytes memory) {
              require(address(this).balance >= value, "Address: insufficient balance for call");
              (bool success, bytes memory returndata) = target.call{value: value}(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but performing a static call.
           *
           * _Available since v3.3._
           */
          function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
              return functionStaticCall(target, data, "Address: low-level static call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
           * but performing a static call.
           *
           * _Available since v3.3._
           */
          function functionStaticCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal view returns (bytes memory) {
              (bool success, bytes memory returndata) = target.staticcall(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
           * but performing a delegate call.
           *
           * _Available since v3.4._
           */
          function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
              return functionDelegateCall(target, data, "Address: low-level delegate call failed");
          }
          /**
           * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
           * but performing a delegate call.
           *
           * _Available since v3.4._
           */
          function functionDelegateCall(
              address target,
              bytes memory data,
              string memory errorMessage
          ) internal returns (bytes memory) {
              (bool success, bytes memory returndata) = target.delegatecall(data);
              return verifyCallResultFromTarget(target, success, returndata, errorMessage);
          }
          /**
           * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
           * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
           *
           * _Available since v4.8._
           */
          function verifyCallResultFromTarget(
              address target,
              bool success,
              bytes memory returndata,
              string memory errorMessage
          ) internal view returns (bytes memory) {
              if (success) {
                  if (returndata.length == 0) {
                      // only check isContract if the call was successful and the return data is empty
                      // otherwise we already know that it was a contract
                      require(isContract(target), "Address: call to non-contract");
                  }
                  return returndata;
              } else {
                  _revert(returndata, errorMessage);
              }
          }
          /**
           * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
           * revert reason or using the provided one.
           *
           * _Available since v4.3._
           */
          function verifyCallResult(
              bool success,
              bytes memory returndata,
              string memory errorMessage
          ) internal pure returns (bytes memory) {
              if (success) {
                  return returndata;
              } else {
                  _revert(returndata, errorMessage);
              }
          }
          function _revert(bytes memory returndata, string memory errorMessage) private pure {
              // Look for revert reason and bubble it up if present
              if (returndata.length > 0) {
                  // The easiest way to bubble the revert reason is using memory via assembly
                  /// @solidity memory-safe-assembly
                  assembly {
                      let returndata_size := mload(returndata)
                      revert(add(32, returndata), returndata_size)
                  }
              } else {
                  revert(errorMessage);
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
      pragma solidity ^0.8.0;
      import "../proxy/utils/Initializable.sol";
      /**
       * @dev Provides information about the current execution context, including the
       * sender of the transaction and its data. While these are generally available
       * via msg.sender and msg.data, they should not be accessed in such a direct
       * manner, since when dealing with meta-transactions the account sending and
       * paying for execution may not be the actual sender (as far as an application
       * is concerned).
       *
       * This contract is only required for intermediate, library-like contracts.
       */
      abstract contract ContextUpgradeable is Initializable {
          function __Context_init() internal onlyInitializing {
          }
          function __Context_init_unchained() internal onlyInitializing {
          }
          function _msgSender() internal view virtual returns (address) {
              return msg.sender;
          }
          function _msgData() internal view virtual returns (bytes calldata) {
              return msg.data;
          }
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[50] private __gap;
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev Standard math utilities missing in the Solidity language.
       */
      library MathUpgradeable {
          enum Rounding {
              Down, // Toward negative infinity
              Up, // Toward infinity
              Zero // Toward zero
          }
          /**
           * @dev Returns the largest of two numbers.
           */
          function max(uint256 a, uint256 b) internal pure returns (uint256) {
              return a > b ? a : b;
          }
          /**
           * @dev Returns the smallest of two numbers.
           */
          function min(uint256 a, uint256 b) internal pure returns (uint256) {
              return a < b ? a : b;
          }
          /**
           * @dev Returns the average of two numbers. The result is rounded towards
           * zero.
           */
          function average(uint256 a, uint256 b) internal pure returns (uint256) {
              // (a + b) / 2 can overflow.
              return (a & b) + (a ^ b) / 2;
          }
          /**
           * @dev Returns the ceiling of the division of two numbers.
           *
           * This differs from standard division with `/` in that it rounds up instead
           * of rounding down.
           */
          function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
              // (a + b - 1) / b can overflow on addition, so we distribute.
              return a == 0 ? 0 : (a - 1) / b + 1;
          }
          /**
           * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
           * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
           * with further edits by Uniswap Labs also under MIT license.
           */
          function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
              unchecked {
                  // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
                  // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
                  // variables such that product = prod1 * 2^256 + prod0.
                  uint256 prod0; // Least significant 256 bits of the product
                  uint256 prod1; // Most significant 256 bits of the product
                  assembly {
                      let mm := mulmod(x, y, not(0))
                      prod0 := mul(x, y)
                      prod1 := sub(sub(mm, prod0), lt(mm, prod0))
                  }
                  // Handle non-overflow cases, 256 by 256 division.
                  if (prod1 == 0) {
                      // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                      // The surrounding unchecked block does not change this fact.
                      // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                      return prod0 / denominator;
                  }
                  // Make sure the result is less than 2^256. Also prevents denominator == 0.
                  require(denominator > prod1, "Math: mulDiv overflow");
                  ///////////////////////////////////////////////
                  // 512 by 256 division.
                  ///////////////////////////////////////////////
                  // Make division exact by subtracting the remainder from [prod1 prod0].
                  uint256 remainder;
                  assembly {
                      // Compute remainder using mulmod.
                      remainder := mulmod(x, y, denominator)
                      // Subtract 256 bit number from 512 bit number.
                      prod1 := sub(prod1, gt(remainder, prod0))
                      prod0 := sub(prod0, remainder)
                  }
                  // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
                  // See https://cs.stackexchange.com/q/138556/92363.
                  // Does not overflow because the denominator cannot be zero at this stage in the function.
                  uint256 twos = denominator & (~denominator + 1);
                  assembly {
                      // Divide denominator by twos.
                      denominator := div(denominator, twos)
                      // Divide [prod1 prod0] by twos.
                      prod0 := div(prod0, twos)
                      // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                      twos := add(div(sub(0, twos), twos), 1)
                  }
                  // Shift in bits from prod1 into prod0.
                  prod0 |= prod1 * twos;
                  // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
                  // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
                  // four bits. That is, denominator * inv = 1 mod 2^4.
                  uint256 inverse = (3 * denominator) ^ 2;
                  // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
                  // in modular arithmetic, doubling the correct bits in each step.
                  inverse *= 2 - denominator * inverse; // inverse mod 2^8
                  inverse *= 2 - denominator * inverse; // inverse mod 2^16
                  inverse *= 2 - denominator * inverse; // inverse mod 2^32
                  inverse *= 2 - denominator * inverse; // inverse mod 2^64
                  inverse *= 2 - denominator * inverse; // inverse mod 2^128
                  inverse *= 2 - denominator * inverse; // inverse mod 2^256
                  // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
                  // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
                  // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
                  // is no longer required.
                  result = prod0 * inverse;
                  return result;
              }
          }
          /**
           * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
           */
          function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
              uint256 result = mulDiv(x, y, denominator);
              if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
                  result += 1;
              }
              return result;
          }
          /**
           * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
           *
           * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
           */
          function sqrt(uint256 a) internal pure returns (uint256) {
              if (a == 0) {
                  return 0;
              }
              // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
              //
              // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
              // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
              //
              // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
              // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
              // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
              //
              // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
              uint256 result = 1 << (log2(a) >> 1);
              // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
              // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
              // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
              // into the expected uint128 result.
              unchecked {
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  result = (result + a / result) >> 1;
                  return min(result, a / result);
              }
          }
          /**
           * @notice Calculates sqrt(a), following the selected rounding direction.
           */
          function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
              unchecked {
                  uint256 result = sqrt(a);
                  return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
              }
          }
          /**
           * @dev Return the log in base 2, rounded down, of a positive value.
           * Returns 0 if given 0.
           */
          function log2(uint256 value) internal pure returns (uint256) {
              uint256 result = 0;
              unchecked {
                  if (value >> 128 > 0) {
                      value >>= 128;
                      result += 128;
                  }
                  if (value >> 64 > 0) {
                      value >>= 64;
                      result += 64;
                  }
                  if (value >> 32 > 0) {
                      value >>= 32;
                      result += 32;
                  }
                  if (value >> 16 > 0) {
                      value >>= 16;
                      result += 16;
                  }
                  if (value >> 8 > 0) {
                      value >>= 8;
                      result += 8;
                  }
                  if (value >> 4 > 0) {
                      value >>= 4;
                      result += 4;
                  }
                  if (value >> 2 > 0) {
                      value >>= 2;
                      result += 2;
                  }
                  if (value >> 1 > 0) {
                      result += 1;
                  }
              }
              return result;
          }
          /**
           * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
           * Returns 0 if given 0.
           */
          function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
              unchecked {
                  uint256 result = log2(value);
                  return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
              }
          }
          /**
           * @dev Return the log in base 10, rounded down, of a positive value.
           * Returns 0 if given 0.
           */
          function log10(uint256 value) internal pure returns (uint256) {
              uint256 result = 0;
              unchecked {
                  if (value >= 10 ** 64) {
                      value /= 10 ** 64;
                      result += 64;
                  }
                  if (value >= 10 ** 32) {
                      value /= 10 ** 32;
                      result += 32;
                  }
                  if (value >= 10 ** 16) {
                      value /= 10 ** 16;
                      result += 16;
                  }
                  if (value >= 10 ** 8) {
                      value /= 10 ** 8;
                      result += 8;
                  }
                  if (value >= 10 ** 4) {
                      value /= 10 ** 4;
                      result += 4;
                  }
                  if (value >= 10 ** 2) {
                      value /= 10 ** 2;
                      result += 2;
                  }
                  if (value >= 10 ** 1) {
                      result += 1;
                  }
              }
              return result;
          }
          /**
           * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
           * Returns 0 if given 0.
           */
          function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
              unchecked {
                  uint256 result = log10(value);
                  return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
              }
          }
          /**
           * @dev Return the log in base 256, rounded down, of a positive value.
           * Returns 0 if given 0.
           *
           * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
           */
          function log256(uint256 value) internal pure returns (uint256) {
              uint256 result = 0;
              unchecked {
                  if (value >> 128 > 0) {
                      value >>= 128;
                      result += 16;
                  }
                  if (value >> 64 > 0) {
                      value >>= 64;
                      result += 8;
                  }
                  if (value >> 32 > 0) {
                      value >>= 32;
                      result += 4;
                  }
                  if (value >> 16 > 0) {
                      value >>= 16;
                      result += 2;
                  }
                  if (value >> 8 > 0) {
                      result += 1;
                  }
              }
              return result;
          }
          /**
           * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
           * Returns 0 if given 0.
           */
          function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
              unchecked {
                  uint256 result = log256(value);
                  return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev Standard signed math utilities missing in the Solidity language.
       */
      library SignedMathUpgradeable {
          /**
           * @dev Returns the largest of two signed numbers.
           */
          function max(int256 a, int256 b) internal pure returns (int256) {
              return a > b ? a : b;
          }
          /**
           * @dev Returns the smallest of two signed numbers.
           */
          function min(int256 a, int256 b) internal pure returns (int256) {
              return a < b ? a : b;
          }
          /**
           * @dev Returns the average of two signed numbers without overflow.
           * The result is rounded towards zero.
           */
          function average(int256 a, int256 b) internal pure returns (int256) {
              // Formula from the book "Hacker's Delight"
              int256 x = (a & b) + ((a ^ b) >> 1);
              return x + (int256(uint256(x) >> 255) & (a ^ b));
          }
          /**
           * @dev Returns the absolute unsigned value of a signed value.
           */
          function abs(int256 n) internal pure returns (uint256) {
              unchecked {
                  // must be unchecked in order to support `n = type(int256).min`
                  return uint256(n >= 0 ? n : -n);
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
      pragma solidity ^0.8.0;
      import "./math/MathUpgradeable.sol";
      import "./math/SignedMathUpgradeable.sol";
      /**
       * @dev String operations.
       */
      library StringsUpgradeable {
          bytes16 private constant _SYMBOLS = "0123456789abcdef";
          uint8 private constant _ADDRESS_LENGTH = 20;
          /**
           * @dev Converts a `uint256` to its ASCII `string` decimal representation.
           */
          function toString(uint256 value) internal pure returns (string memory) {
              unchecked {
                  uint256 length = MathUpgradeable.log10(value) + 1;
                  string memory buffer = new string(length);
                  uint256 ptr;
                  /// @solidity memory-safe-assembly
                  assembly {
                      ptr := add(buffer, add(32, length))
                  }
                  while (true) {
                      ptr--;
                      /// @solidity memory-safe-assembly
                      assembly {
                          mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                      }
                      value /= 10;
                      if (value == 0) break;
                  }
                  return buffer;
              }
          }
          /**
           * @dev Converts a `int256` to its ASCII `string` decimal representation.
           */
          function toString(int256 value) internal pure returns (string memory) {
              return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMathUpgradeable.abs(value))));
          }
          /**
           * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
           */
          function toHexString(uint256 value) internal pure returns (string memory) {
              unchecked {
                  return toHexString(value, MathUpgradeable.log256(value) + 1);
              }
          }
          /**
           * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
           */
          function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
              bytes memory buffer = new bytes(2 * length + 2);
              buffer[0] = "0";
              buffer[1] = "x";
              for (uint256 i = 2 * length + 1; i > 1; --i) {
                  buffer[i] = _SYMBOLS[value & 0xf];
                  value >>= 4;
              }
              require(value == 0, "Strings: hex length insufficient");
              return string(buffer);
          }
          /**
           * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
           */
          function toHexString(address addr) internal pure returns (string memory) {
              return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
          }
          /**
           * @dev Returns true if the two strings are equal.
           */
          function equal(string memory a, string memory b) internal pure returns (bool) {
              return keccak256(bytes(a)) == keccak256(bytes(b));
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
      pragma solidity ^0.8.0;
      /**
       * @dev Provides information about the current execution context, including the
       * sender of the transaction and its data. While these are generally available
       * via msg.sender and msg.data, they should not be accessed in such a direct
       * manner, since when dealing with meta-transactions the account sending and
       * paying for execution may not be the actual sender (as far as an application
       * is concerned).
       *
       * This contract is only required for intermediate, library-like contracts.
       */
      abstract contract Context {
          function _msgSender() internal view virtual returns (address) {
              return msg.sender;
          }
          function _msgData() internal view virtual returns (bytes calldata) {
              return msg.data;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.9.0) (utils/structs/EnumerableSet.sol)
      // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.
      pragma solidity ^0.8.0;
      /**
       * @dev Library for managing
       * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
       * types.
       *
       * Sets have the following properties:
       *
       * - Elements are added, removed, and checked for existence in constant time
       * (O(1)).
       * - Elements are enumerated in O(n). No guarantees are made on the ordering.
       *
       * ```solidity
       * contract Example {
       *     // Add the library methods
       *     using EnumerableSet for EnumerableSet.AddressSet;
       *
       *     // Declare a set state variable
       *     EnumerableSet.AddressSet private mySet;
       * }
       * ```
       *
       * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
       * and `uint256` (`UintSet`) are supported.
       *
       * [WARNING]
       * ====
       * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
       * unusable.
       * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
       *
       * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
       * array of EnumerableSet.
       * ====
       */
      library EnumerableSet {
          // To implement this library for multiple types with as little code
          // repetition as possible, we write it in terms of a generic Set type with
          // bytes32 values.
          // The Set implementation uses private functions, and user-facing
          // implementations (such as AddressSet) are just wrappers around the
          // underlying Set.
          // This means that we can only create new EnumerableSets for types that fit
          // in bytes32.
          struct Set {
              // Storage of set values
              bytes32[] _values;
              // Position of the value in the `values` array, plus 1 because index 0
              // means a value is not in the set.
              mapping(bytes32 => uint256) _indexes;
          }
          /**
           * @dev Add a value to a set. O(1).
           *
           * Returns true if the value was added to the set, that is if it was not
           * already present.
           */
          function _add(Set storage set, bytes32 value) private returns (bool) {
              if (!_contains(set, value)) {
                  set._values.push(value);
                  // The value is stored at length-1, but we add 1 to all indexes
                  // and use 0 as a sentinel value
                  set._indexes[value] = set._values.length;
                  return true;
              } else {
                  return false;
              }
          }
          /**
           * @dev Removes a value from a set. O(1).
           *
           * Returns true if the value was removed from the set, that is if it was
           * present.
           */
          function _remove(Set storage set, bytes32 value) private returns (bool) {
              // We read and store the value's index to prevent multiple reads from the same storage slot
              uint256 valueIndex = set._indexes[value];
              if (valueIndex != 0) {
                  // Equivalent to contains(set, value)
                  // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
                  // the array, and then remove the last element (sometimes called as 'swap and pop').
                  // This modifies the order of the array, as noted in {at}.
                  uint256 toDeleteIndex = valueIndex - 1;
                  uint256 lastIndex = set._values.length - 1;
                  if (lastIndex != toDeleteIndex) {
                      bytes32 lastValue = set._values[lastIndex];
                      // Move the last value to the index where the value to delete is
                      set._values[toDeleteIndex] = lastValue;
                      // Update the index for the moved value
                      set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
                  }
                  // Delete the slot where the moved value was stored
                  set._values.pop();
                  // Delete the index for the deleted slot
                  delete set._indexes[value];
                  return true;
              } else {
                  return false;
              }
          }
          /**
           * @dev Returns true if the value is in the set. O(1).
           */
          function _contains(Set storage set, bytes32 value) private view returns (bool) {
              return set._indexes[value] != 0;
          }
          /**
           * @dev Returns the number of values on the set. O(1).
           */
          function _length(Set storage set) private view returns (uint256) {
              return set._values.length;
          }
          /**
           * @dev Returns the value stored at position `index` in the set. O(1).
           *
           * Note that there are no guarantees on the ordering of values inside the
           * array, and it may change when more values are added or removed.
           *
           * Requirements:
           *
           * - `index` must be strictly less than {length}.
           */
          function _at(Set storage set, uint256 index) private view returns (bytes32) {
              return set._values[index];
          }
          /**
           * @dev Return the entire set in an array
           *
           * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
           * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
           * this function has an unbounded cost, and using it as part of a state-changing function may render the function
           * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
           */
          function _values(Set storage set) private view returns (bytes32[] memory) {
              return set._values;
          }
          // Bytes32Set
          struct Bytes32Set {
              Set _inner;
          }
          /**
           * @dev Add a value to a set. O(1).
           *
           * Returns true if the value was added to the set, that is if it was not
           * already present.
           */
          function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
              return _add(set._inner, value);
          }
          /**
           * @dev Removes a value from a set. O(1).
           *
           * Returns true if the value was removed from the set, that is if it was
           * present.
           */
          function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
              return _remove(set._inner, value);
          }
          /**
           * @dev Returns true if the value is in the set. O(1).
           */
          function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
              return _contains(set._inner, value);
          }
          /**
           * @dev Returns the number of values in the set. O(1).
           */
          function length(Bytes32Set storage set) internal view returns (uint256) {
              return _length(set._inner);
          }
          /**
           * @dev Returns the value stored at position `index` in the set. O(1).
           *
           * Note that there are no guarantees on the ordering of values inside the
           * array, and it may change when more values are added or removed.
           *
           * Requirements:
           *
           * - `index` must be strictly less than {length}.
           */
          function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
              return _at(set._inner, index);
          }
          /**
           * @dev Return the entire set in an array
           *
           * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
           * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
           * this function has an unbounded cost, and using it as part of a state-changing function may render the function
           * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
           */
          function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
              bytes32[] memory store = _values(set._inner);
              bytes32[] memory result;
              /// @solidity memory-safe-assembly
              assembly {
                  result := store
              }
              return result;
          }
          // AddressSet
          struct AddressSet {
              Set _inner;
          }
          /**
           * @dev Add a value to a set. O(1).
           *
           * Returns true if the value was added to the set, that is if it was not
           * already present.
           */
          function add(AddressSet storage set, address value) internal returns (bool) {
              return _add(set._inner, bytes32(uint256(uint160(value))));
          }
          /**
           * @dev Removes a value from a set. O(1).
           *
           * Returns true if the value was removed from the set, that is if it was
           * present.
           */
          function remove(AddressSet storage set, address value) internal returns (bool) {
              return _remove(set._inner, bytes32(uint256(uint160(value))));
          }
          /**
           * @dev Returns true if the value is in the set. O(1).
           */
          function contains(AddressSet storage set, address value) internal view returns (bool) {
              return _contains(set._inner, bytes32(uint256(uint160(value))));
          }
          /**
           * @dev Returns the number of values in the set. O(1).
           */
          function length(AddressSet storage set) internal view returns (uint256) {
              return _length(set._inner);
          }
          /**
           * @dev Returns the value stored at position `index` in the set. O(1).
           *
           * Note that there are no guarantees on the ordering of values inside the
           * array, and it may change when more values are added or removed.
           *
           * Requirements:
           *
           * - `index` must be strictly less than {length}.
           */
          function at(AddressSet storage set, uint256 index) internal view returns (address) {
              return address(uint160(uint256(_at(set._inner, index))));
          }
          /**
           * @dev Return the entire set in an array
           *
           * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
           * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
           * this function has an unbounded cost, and using it as part of a state-changing function may render the function
           * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
           */
          function values(AddressSet storage set) internal view returns (address[] memory) {
              bytes32[] memory store = _values(set._inner);
              address[] memory result;
              /// @solidity memory-safe-assembly
              assembly {
                  result := store
              }
              return result;
          }
          // UintSet
          struct UintSet {
              Set _inner;
          }
          /**
           * @dev Add a value to a set. O(1).
           *
           * Returns true if the value was added to the set, that is if it was not
           * already present.
           */
          function add(UintSet storage set, uint256 value) internal returns (bool) {
              return _add(set._inner, bytes32(value));
          }
          /**
           * @dev Removes a value from a set. O(1).
           *
           * Returns true if the value was removed from the set, that is if it was
           * present.
           */
          function remove(UintSet storage set, uint256 value) internal returns (bool) {
              return _remove(set._inner, bytes32(value));
          }
          /**
           * @dev Returns true if the value is in the set. O(1).
           */
          function contains(UintSet storage set, uint256 value) internal view returns (bool) {
              return _contains(set._inner, bytes32(value));
          }
          /**
           * @dev Returns the number of values in the set. O(1).
           */
          function length(UintSet storage set) internal view returns (uint256) {
              return _length(set._inner);
          }
          /**
           * @dev Returns the value stored at position `index` in the set. O(1).
           *
           * Note that there are no guarantees on the ordering of values inside the
           * array, and it may change when more values are added or removed.
           *
           * Requirements:
           *
           * - `index` must be strictly less than {length}.
           */
          function at(UintSet storage set, uint256 index) internal view returns (uint256) {
              return uint256(_at(set._inner, index));
          }
          /**
           * @dev Return the entire set in an array
           *
           * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
           * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
           * this function has an unbounded cost, and using it as part of a state-changing function may render the function
           * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
           */
          function values(UintSet storage set) internal view returns (uint256[] memory) {
              bytes32[] memory store = _values(set._inner);
              uint256[] memory result;
              /// @solidity memory-safe-assembly
              assembly {
                  result := store
              }
              return result;
          }
      }
      // SPDX-License-Identifier: MIT
      pragma solidity 0.8.10;
      /* solhint-disable */
      library ERC721AStorage {
          // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).
          struct TokenApprovalRef {
              address value;
          }
          struct Layout {
              // =============================================================
              //                            STORAGE
              // =============================================================
              // The next token ID to be minted.
              uint256 _currentIndex;
              // The number of tokens burned.
              uint256 _burnCounter;
              // Token name
              string _name;
              // Token symbol
              string _symbol;
              // Mapping from token ID to ownership details
              // An empty struct value does not necessarily mean the token is unowned.
              // See {_packedOwnershipOf} implementation for details.
              //
              // Bits Layout:
              // - [0..159]   `addr`
              // - [160..223] `startTimestamp`
              // - [224]      `burned`
              // - [225]      `nextInitialized`
              // - [232..255] `extraData`
              mapping(uint256 => uint256) _packedOwnerships;
              // Mapping owner address to address data.
              //
              // Bits Layout:
              // - [0..63]    `balance`
              // - [64..127]  `numberMinted`
              // - [128..191] `numberBurned`
              // - [192..255] `aux`
              mapping(address => uint256) _packedAddressData;
              // Mapping from token ID to approved address.
              mapping(uint256 => ERC721AStorage.TokenApprovalRef) _tokenApprovals;
              // Mapping from owner to operator approvals
              mapping(address => mapping(address => bool)) _operatorApprovals;
          }
          bytes32 internal constant STORAGE_SLOT = keccak256("ERC721A.contracts.storage.ERC721A");
          function layout() internal pure returns (Layout storage l) {
              bytes32 slot = STORAGE_SLOT;
              assembly {
                  l.slot := slot
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // ERC721A Contracts v4.2.3
      // Creator: Chiru Labs
      pragma solidity 0.8.10;
      import "./IERC721AUpgradeable.sol";
      import { ERC721AStorage } from "./ERC721AStorage.sol";
      import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
      import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
      /* solhint-disable */
      /**
       * @dev Interface of ERC721 token receiver.
       */
      interface ERC721A__IERC721ReceiverUpgradeable {
          function onERC721Received(
              address operator,
              address from,
              uint256 tokenId,
              bytes calldata data
          ) external returns (bytes4);
      }
      /**
       * @title ERC721A
       * @author Chiru Labs, modified by [email protected]
       *
       * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
       * Non-Fungible Token Standard, including the Metadata extension.
       * Optimized for lower gas during batch mints.
       *
       * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
       * starting from `_startTokenId()`.
       *
       * Assumptions:
       *
       * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
       * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
       */
      contract ERC721AUpgradeable is Initializable, IERC721AUpgradeable, ContextUpgradeable {
          using ERC721AStorage for ERC721AStorage.Layout;
          // =============================================================
          //                           CONSTANTS
          // =============================================================
          // Mask of an entry in packed address data.
          uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;
          // The bit position of `numberMinted` in packed address data.
          uint256 private constant _BITPOS_NUMBER_MINTED = 64;
          // The bit position of `numberBurned` in packed address data.
          uint256 private constant _BITPOS_NUMBER_BURNED = 128;
          // The bit position of `aux` in packed address data.
          uint256 private constant _BITPOS_AUX = 192;
          // Mask of all 256 bits in packed address data except the 64 bits for `aux`.
          uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;
          // The bit position of `startTimestamp` in packed ownership.
          uint256 private constant _BITPOS_START_TIMESTAMP = 160;
          // The bit mask of the `burned` bit in packed ownership.
          uint256 private constant _BITMASK_BURNED = 1 << 224;
          // The bit position of the `nextInitialized` bit in packed ownership.
          uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;
          // The bit mask of the `nextInitialized` bit in packed ownership.
          uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;
          // The bit position of `extraData` in packed ownership.
          uint256 private constant _BITPOS_EXTRA_DATA = 232;
          // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.
          uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;
          // The mask of the lower 160 bits for addresses.
          uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;
          // The maximum `quantity` that can be minted with {_mintERC2309}.
          // This limit is to prevent overflows on the address data entries.
          // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
          // is required to cause an overflow, which is unrealistic.
          uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;
          // The `Transfer` event signature is given by:
          // `keccak256(bytes("Transfer(address,address,uint256)"))`.
          bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
              0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
          // =============================================================
          //                          CONSTRUCTOR
          // =============================================================
          function __ERC721A_init(string memory name_, string memory symbol_) internal onlyInitializing {
              __ERC721A_init_unchained(name_, symbol_);
          }
          function __ERC721A_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
              ERC721AStorage.layout()._name = name_;
              ERC721AStorage.layout()._symbol = symbol_;
              ERC721AStorage.layout()._currentIndex = _startTokenId();
          }
          // =============================================================
          //                   TOKEN COUNTING OPERATIONS
          // =============================================================
          /**
           * @dev Returns the starting token ID.
           * To change the starting token ID, please override this function.
           */
          function _startTokenId() internal view virtual returns (uint256) {
              return 1;
          }
          /**
           * @dev Returns the next token ID to be minted.
           */
          function _nextTokenId() internal view virtual returns (uint256) {
              return ERC721AStorage.layout()._currentIndex;
          }
          /**
           * @dev Returns the total number of tokens in existence.
           * Burned tokens will reduce the count.
           * To get the total number of tokens minted, please see {_totalMinted}.
           */
          function totalSupply() public view virtual override returns (uint256) {
              // Counter underflow is impossible as _burnCounter cannot be incremented
              // more than `_currentIndex - _startTokenId()` times.
              unchecked {
                  return ERC721AStorage.layout()._currentIndex - ERC721AStorage.layout()._burnCounter - _startTokenId();
              }
          }
          /**
           * @dev Returns the total amount of tokens minted in the contract.
           */
          function _totalMinted() internal view virtual returns (uint256) {
              // Counter underflow is impossible as `_currentIndex` does not decrement,
              // and it is initialized to `_startTokenId()`.
              unchecked {
                  return ERC721AStorage.layout()._currentIndex - _startTokenId();
              }
          }
          /**
           * @dev Returns the total number of tokens burned.
           */
          function _totalBurned() internal view virtual returns (uint256) {
              return ERC721AStorage.layout()._burnCounter;
          }
          // =============================================================
          //                    ADDRESS DATA OPERATIONS
          // =============================================================
          /**
           * @dev Returns the number of tokens in `owner`'s account.
           */
          function balanceOf(address owner) public view virtual override returns (uint256) {
              if (owner == address(0)) _revert(BalanceQueryForZeroAddress.selector);
              return ERC721AStorage.layout()._packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
          }
          /**
           * Returns the number of tokens minted by `owner`.
           */
          function _numberMinted(address owner) internal view returns (uint256) {
              return
                  (ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;
          }
          /**
           * Returns the number of tokens burned by or on behalf of `owner`.
           */
          function _numberBurned(address owner) internal view returns (uint256) {
              return
                  (ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;
          }
          /**
           * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
           */
          function _getAux(address owner) internal view returns (uint64) {
              return uint64(ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_AUX);
          }
          /**
           * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
           * If there are multiple variables, please pack them into a uint64.
           */
          function _setAux(address owner, uint64 aux) internal virtual {
              uint256 packed = ERC721AStorage.layout()._packedAddressData[owner];
              uint256 auxCasted;
              // Cast `aux` with assembly to avoid redundant masking.
              assembly {
                  auxCasted := aux
              }
              packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);
              ERC721AStorage.layout()._packedAddressData[owner] = packed;
          }
          // =============================================================
          //                            IERC165
          // =============================================================
          /**
           * @dev Returns true if this contract implements the interface defined by
           * `interfaceId`. See the corresponding
           * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
           * to learn more about how these ids are created.
           *
           * This function call must use less than 30000 gas.
           */
          function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
              // The interface IDs are constants representing the first 4 bytes
              // of the XOR of all function selectors in the interface.
              // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
              // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)
              return
                  interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
                  interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
                  interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
          }
          // =============================================================
          //                        IERC721Metadata
          // =============================================================
          /**
           * @dev Returns the token collection name.
           */
          function name() public view virtual override returns (string memory) {
              return ERC721AStorage.layout()._name;
          }
          /**
           * @dev Returns the token collection symbol.
           */
          function symbol() public view virtual override returns (string memory) {
              return ERC721AStorage.layout()._symbol;
          }
          /**
           * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
           */
          function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
              if (!_exists(tokenId)) _revert(URIQueryForNonexistentToken.selector);
              string memory baseURI = _baseURI();
              return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, "/", _toString(tokenId))) : "";
          }
          /**
           * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
           * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
           * by default, it can be overridden in child contracts.
           */
          function _baseURI() internal view virtual returns (string memory) {
              return "";
          }
          // =============================================================
          //                     OWNERSHIPS OPERATIONS
          // =============================================================
          /**
           * @dev Returns the owner of the `tokenId` token.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function ownerOf(uint256 tokenId) public view virtual override returns (address) {
              return address(uint160(_packedOwnershipOf(tokenId)));
          }
          /**
           * @dev Added by Highlight to facilitate updating of name and symbol
           */
          function _setContractMetadata(string calldata newName, string calldata newSymbol) internal {
              ERC721AStorage.layout()._name = newName;
              ERC721AStorage.layout()._symbol = newSymbol;
          }
          /**
           * @dev Gas spent here starts off proportional to the maximum mint batch size.
           * It gradually moves to O(1) as tokens get transferred around over time.
           */
          function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {
              return _unpackedOwnership(_packedOwnershipOf(tokenId));
          }
          /**
           * @dev Returns the unpacked `TokenOwnership` struct at `index`.
           */
          function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {
              return _unpackedOwnership(ERC721AStorage.layout()._packedOwnerships[index]);
          }
          /**
           * @dev Returns whether the ownership slot at `index` is initialized.
           * An uninitialized slot does not necessarily mean that the slot has no owner.
           */
          function _ownershipIsInitialized(uint256 index) internal view virtual returns (bool) {
              return ERC721AStorage.layout()._packedOwnerships[index] != 0;
          }
          /**
           * @dev Initializes the ownership slot minted at `index` for efficiency purposes.
           */
          function _initializeOwnershipAt(uint256 index) internal virtual {
              if (ERC721AStorage.layout()._packedOwnerships[index] == 0) {
                  ERC721AStorage.layout()._packedOwnerships[index] = _packedOwnershipOf(index);
              }
          }
          /**
           * Returns the packed ownership data of `tokenId`.
           */
          function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) {
              if (_startTokenId() <= tokenId) {
                  packed = ERC721AStorage.layout()._packedOwnerships[tokenId];
                  // If the data at the starting slot does not exist, start the scan.
                  if (packed == 0) {
                      if (tokenId >= ERC721AStorage.layout()._currentIndex) _revert(OwnerQueryForNonexistentToken.selector);
                      // Invariant:
                      // There will always be an initialized ownership slot
                      // (i.e. `ownership.addr != address(0) && ownership.burned == false`)
                      // before an unintialized ownership slot
                      // (i.e. `ownership.addr == address(0) && ownership.burned == false`)
                      // Hence, `tokenId` will not underflow.
                      //
                      // We can directly compare the packed value.
                      // If the address is zero, packed will be zero.
                      for (;;) {
                          unchecked {
                              packed = ERC721AStorage.layout()._packedOwnerships[--tokenId];
                          }
                          if (packed == 0) continue;
                          if (packed & _BITMASK_BURNED == 0) return packed;
                          // Otherwise, the token is burned, and we must revert.
                          // This handles the case of batch burned tokens, where only the burned bit
                          // of the starting slot is set, and remaining slots are left uninitialized.
                          _revert(OwnerQueryForNonexistentToken.selector);
                      }
                  }
                  // Otherwise, the data exists and we can skip the scan.
                  // This is possible because we have already achieved the target condition.
                  // This saves 2143 gas on transfers of initialized tokens.
                  // If the token is not burned, return `packed`. Otherwise, revert.
                  if (packed & _BITMASK_BURNED == 0) return packed;
              }
              _revert(OwnerQueryForNonexistentToken.selector);
          }
          /**
           * @dev Returns the unpacked `TokenOwnership` struct from `packed`.
           */
          function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
              ownership.addr = address(uint160(packed));
              ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
              ownership.burned = packed & _BITMASK_BURNED != 0;
              ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
          }
          /**
           * @dev Packs ownership data into a single uint256.
           */
          function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {
              assembly {
                  // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
                  owner := and(owner, _BITMASK_ADDRESS)
                  // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.
                  result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))
              }
          }
          /**
           * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.
           */
          function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {
              // For branchless setting of the `nextInitialized` flag.
              assembly {
                  // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.
                  result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
              }
          }
          // =============================================================
          //                      APPROVAL OPERATIONS
          // =============================================================
          /**
           * @dev Gives permission to `to` to transfer `tokenId` token to another account. See {ERC721A-_approve}.
           *
           * Requirements:
           *
           * - The caller must own the token or be an approved operator.
           */
          function approve(address to, uint256 tokenId) public payable virtual override {
              _approve(to, tokenId, true);
          }
          /**
           * @dev Returns the account approved for `tokenId` token.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function getApproved(uint256 tokenId) public view virtual override returns (address) {
              if (!_exists(tokenId)) _revert(ApprovalQueryForNonexistentToken.selector);
              return ERC721AStorage.layout()._tokenApprovals[tokenId].value;
          }
          /**
           * @dev Approve or remove `operator` as an operator for the caller.
           * Operators can call {transferFrom} or {safeTransferFrom}
           * for any token owned by the caller.
           *
           * Requirements:
           *
           * - The `operator` cannot be the caller.
           *
           * Emits an {ApprovalForAll} event.
           */
          function setApprovalForAll(address operator, bool approved) public virtual override {
              ERC721AStorage.layout()._operatorApprovals[_msgSenderERC721A()][operator] = approved;
              emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
          }
          /**
           * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
           *
           * See {setApprovalForAll}.
           */
          function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
              return ERC721AStorage.layout()._operatorApprovals[owner][operator];
          }
          /**
           * @dev Returns whether `tokenId` exists.
           *
           * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
           *
           * Tokens start existing when they are minted. See {_mint}.
           */
          function _exists(uint256 tokenId) internal view virtual returns (bool result) {
              if (_startTokenId() <= tokenId) {
                  if (tokenId < ERC721AStorage.layout()._currentIndex) {
                      uint256 packed;
                      while ((packed = ERC721AStorage.layout()._packedOwnerships[tokenId]) == 0) --tokenId;
                      result = packed & _BITMASK_BURNED == 0;
                  }
              }
          }
          /**
           * @dev Returns whether `spender` is allowed to manage `tokenId`.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
              address owner = ownerOf(tokenId);
              return (isApprovedForAll(owner, spender) || _isSenderApprovedOrOwner(getApproved(tokenId), owner, spender));
          }
          /**
           * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.
           */
          function _isSenderApprovedOrOwner(
              address approvedAddress,
              address owner,
              address msgSender
          ) private pure returns (bool result) {
              assembly {
                  // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
                  owner := and(owner, _BITMASK_ADDRESS)
                  // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.
                  msgSender := and(msgSender, _BITMASK_ADDRESS)
                  // `msgSender == owner || msgSender == approvedAddress`.
                  result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
              }
          }
          /**
           * @dev Returns the storage slot and value for the approved address of `tokenId`.
           */
          function _getApprovedSlotAndAddress(
              uint256 tokenId
          ) private view returns (uint256 approvedAddressSlot, address approvedAddress) {
              ERC721AStorage.TokenApprovalRef storage tokenApproval = ERC721AStorage.layout()._tokenApprovals[tokenId];
              // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.
              assembly {
                  approvedAddressSlot := tokenApproval.slot
                  approvedAddress := sload(approvedAddressSlot)
              }
          }
          // =============================================================
          //                      TRANSFER OPERATIONS
          // =============================================================
          /**
           * @dev Transfers `tokenId` from `from` to `to`.
           *
           * Requirements:
           *
           * - `from` cannot be the zero address.
           * - `to` cannot be the zero address.
           * - `tokenId` token must be owned by `from`.
           * - If the caller is not `from`, it must be approved to move this token
           * by either {approve} or {setApprovalForAll}.
           *
           * Emits a {Transfer} event.
           */
          function transferFrom(address from, address to, uint256 tokenId) public payable virtual override {
              uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
              // Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean.
              from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS));
              if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector);
              (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
              // The nested ifs save around 20+ gas over a compound boolean condition.
              if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
                  if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);
              // Clear approvals from the previous owner.
              assembly {
                  if approvedAddress {
                      // This is equivalent to `delete _tokenApprovals[tokenId]`.
                      sstore(approvedAddressSlot, 0)
                  }
              }
              // Underflow of the sender's balance is impossible because we check for
              // ownership above and the recipient's balance can't realistically overflow.
              // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
              unchecked {
                  // We can directly increment and decrement the balances.
                  --ERC721AStorage.layout()._packedAddressData[from]; // Updates: `balance -= 1`.
                  ++ERC721AStorage.layout()._packedAddressData[to]; // Updates: `balance += 1`.
                  // Updates:
                  // - `address` to the next owner.
                  // - `startTimestamp` to the timestamp of transfering.
                  // - `burned` to `false`.
                  // - `nextInitialized` to `true`.
                  ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData(
                      to,
                      _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)
                  );
                  // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
                  if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                      uint256 nextTokenId = tokenId + 1;
                      // If the next slot's address is zero and not burned (i.e. packed value is zero).
                      if (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) {
                          // If the next slot is within bounds.
                          if (nextTokenId != ERC721AStorage.layout()._currentIndex) {
                              // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                              ERC721AStorage.layout()._packedOwnerships[nextTokenId] = prevOwnershipPacked;
                          }
                      }
                  }
              }
              // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
              uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
              assembly {
                  // Emit the `Transfer` event.
                  log4(
                      0, // Start of data (0, since no data).
                      0, // End of data (0, since no data).
                      _TRANSFER_EVENT_SIGNATURE, // Signature.
                      from, // `from`.
                      toMasked, // `to`.
                      tokenId // `tokenId`.
                  )
              }
              if (toMasked == 0) _revert(TransferToZeroAddress.selector);
              _afterTokenTransfers(from, to, tokenId);
          }
          /**
           * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
           */
          function safeTransferFrom(address from, address to, uint256 tokenId) public payable virtual override {
              safeTransferFrom(from, to, tokenId, "");
          }
          /**
           * @dev Safely transfers `tokenId` token from `from` to `to`.
           *
           * Requirements:
           *
           * - `from` cannot be the zero address.
           * - `to` cannot be the zero address.
           * - `tokenId` token must exist and be owned by `from`.
           * - If the caller is not `from`, it must be approved to move this token
           * by either {approve} or {setApprovalForAll}.
           * - If `to` refers to a smart contract, it must implement
           * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
           *
           * Emits a {Transfer} event.
           */
          function safeTransferFrom(
              address from,
              address to,
              uint256 tokenId,
              bytes memory _data
          ) public payable virtual override {
              transferFrom(from, to, tokenId);
              if (to.code.length != 0)
                  if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                      _revert(TransferToNonERC721ReceiverImplementer.selector);
                  }
          }
          /**
           * @dev Hook that is called after a set of serially-ordered token IDs
           * have been transferred. This includes minting.
           * And also called after one token has been burned.
           *
           * `startTokenId` - the first token ID to be transferred.
           * `quantity` - the amount to be transferred.
           *
           * Calling conditions:
           *
           * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
           * transferred to `to`.
           * - When `from` is zero, `tokenId` has been minted for `to`.
           * - When `to` is zero, `tokenId` has been burned by `from`.
           * - `from` and `to` are never both zero.
           */
          function _afterTokenTransfers(address from, address to, uint256 startTokenId) internal virtual {}
          /**
           * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
           *
           * `from` - Previous owner of the given token ID.
           * `to` - Target address that will receive the token.
           * `tokenId` - Token ID to be transferred.
           * `_data` - Optional data to send along with the call.
           *
           * Returns whether the call correctly returned the expected magic value.
           */
          function _checkContractOnERC721Received(
              address from,
              address to,
              uint256 tokenId,
              bytes memory _data
          ) private returns (bool) {
              try
                  ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data)
              returns (bytes4 retval) {
                  return retval == ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received.selector;
              } catch (bytes memory reason) {
                  if (reason.length == 0) {
                      _revert(TransferToNonERC721ReceiverImplementer.selector);
                  }
                  assembly {
                      revert(add(32, reason), mload(reason))
                  }
              }
          }
          // =============================================================
          //                        MINT OPERATIONS
          // =============================================================
          /**
           * @dev Mints `quantity` tokens and transfers them to `to`.
           *
           * Requirements:
           *
           * - `to` cannot be the zero address.
           * - `quantity` must be greater than 0.
           *
           * Emits a {Transfer} event for each mint.
           */
          function _mint(address to, uint256 quantity) internal virtual {
              uint256 startTokenId = ERC721AStorage.layout()._currentIndex;
              if (quantity == 0) _revert(MintZeroQuantity.selector);
              // Overflows are incredibly unrealistic.
              // `balance` and `numberMinted` have a maximum limit of 2**64.
              // `tokenId` has a maximum limit of 2**256.
              unchecked {
                  // Updates:
                  // - `address` to the owner.
                  // - `startTimestamp` to the timestamp of minting.
                  // - `burned` to `false`.
                  // - `nextInitialized` to `quantity == 1`.
                  ERC721AStorage.layout()._packedOwnerships[startTokenId] = _packOwnershipData(
                      to,
                      _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
                  );
                  // Updates:
                  // - `balance += quantity`.
                  // - `numberMinted += quantity`.
                  //
                  // We can directly add to the `balance` and `numberMinted`.
                  ERC721AStorage.layout()._packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
                  // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
                  uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;
                  if (toMasked == 0) _revert(MintToZeroAddress.selector);
                  uint256 end = startTokenId + quantity;
                  uint256 tokenId = startTokenId;
                  do {
                      assembly {
                          // Emit the `Transfer` event.
                          log4(
                              0, // Start of data (0, since no data).
                              0, // End of data (0, since no data).
                              _TRANSFER_EVENT_SIGNATURE, // Signature.
                              0, // `address(0)`.
                              toMasked, // `to`.
                              tokenId // `tokenId`.
                          )
                      }
                      // The `!=` check ensures that large values of `quantity`
                      // that overflows uint256 will make the loop run out of gas.
                  } while (++tokenId != end);
                  ERC721AStorage.layout()._currentIndex = end;
              }
          }
          /**
           * @dev Safely mints `quantity` tokens and transfers them to `to`.
           *
           * Requirements:
           *
           * - If `to` refers to a smart contract, it must implement
           * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
           * - `quantity` must be greater than 0.
           *
           * See {_mint}.
           *
           * Emits a {Transfer} event for each mint.
           */
          function _safeMint(address to, uint256 quantity, bytes memory _data) internal virtual {
              _mint(to, quantity);
              unchecked {
                  if (to.code.length != 0) {
                      uint256 end = ERC721AStorage.layout()._currentIndex;
                      uint256 index = end - quantity;
                      do {
                          if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {
                              _revert(TransferToNonERC721ReceiverImplementer.selector);
                          }
                      } while (index < end);
                      // Reentrancy protection.
                      if (ERC721AStorage.layout()._currentIndex != end) _revert(bytes4(0));
                  }
              }
          }
          /**
           * @dev Equivalent to `_safeMint(to, quantity, '')`.
           */
          function _safeMint(address to, uint256 quantity) internal virtual {
              _safeMint(to, quantity, "");
          }
          // =============================================================
          //                       APPROVAL OPERATIONS
          // =============================================================
          /**
           * @dev Equivalent to `_approve(to, tokenId, false)`.
           */
          function _approve(address to, uint256 tokenId) internal virtual {
              _approve(to, tokenId, false);
          }
          /**
           * @dev Gives permission to `to` to transfer `tokenId` token to another account.
           * The approval is cleared when the token is transferred.
           *
           * Only a single account can be approved at a time, so approving the
           * zero address clears previous approvals.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           *
           * Emits an {Approval} event.
           */
          function _approve(address to, uint256 tokenId, bool approvalCheck) internal virtual {
              address owner = ownerOf(tokenId);
              if (approvalCheck && _msgSenderERC721A() != owner)
                  if (!isApprovedForAll(owner, _msgSenderERC721A())) {
                      _revert(ApprovalCallerNotOwnerNorApproved.selector);
                  }
              ERC721AStorage.layout()._tokenApprovals[tokenId].value = to;
              emit Approval(owner, to, tokenId);
          }
          // =============================================================
          //                        BURN OPERATIONS
          // =============================================================
          /**
           * @dev Equivalent to `_burn(tokenId, false)`.
           */
          function _burn(uint256 tokenId) internal virtual {
              _burn(tokenId, false);
          }
          /**
           * @dev Destroys `tokenId`.
           * The approval is cleared when the token is burned.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           *
           * Emits a {Transfer} event.
           */
          function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
              uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
              address from = address(uint160(prevOwnershipPacked));
              (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
              if (approvalCheck) {
                  // The nested ifs save around 20+ gas over a compound boolean condition.
                  if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
                      if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);
              }
              // Clear approvals from the previous owner.
              assembly {
                  if approvedAddress {
                      // This is equivalent to `delete _tokenApprovals[tokenId]`.
                      sstore(approvedAddressSlot, 0)
                  }
              }
              // Underflow of the sender's balance is impossible because we check for
              // ownership above and the recipient's balance can't realistically overflow.
              // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
              unchecked {
                  // Updates:
                  // - `balance -= 1`.
                  // - `numberBurned += 1`.
                  //
                  // We can directly decrement the balance, and increment the number burned.
                  // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.
                  ERC721AStorage.layout()._packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;
                  // Updates:
                  // - `address` to the last owner.
                  // - `startTimestamp` to the timestamp of burning.
                  // - `burned` to `true`.
                  // - `nextInitialized` to `true`.
                  ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData(
                      from,
                      (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)
                  );
                  // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
                  if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                      uint256 nextTokenId = tokenId + 1;
                      // If the next slot's address is zero and not burned (i.e. packed value is zero).
                      if (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) {
                          // If the next slot is within bounds.
                          if (nextTokenId != ERC721AStorage.layout()._currentIndex) {
                              // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                              ERC721AStorage.layout()._packedOwnerships[nextTokenId] = prevOwnershipPacked;
                          }
                      }
                  }
              }
              emit Transfer(from, address(0), tokenId);
              // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
              unchecked {
                  ERC721AStorage.layout()._burnCounter++;
              }
          }
          // =============================================================
          //                     EXTRA DATA OPERATIONS
          // =============================================================
          /**
           * @dev Directly sets the extra data for the ownership data `index`.
           */
          function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
              uint256 packed = ERC721AStorage.layout()._packedOwnerships[index];
              if (packed == 0) _revert(OwnershipNotInitializedForExtraData.selector);
              uint256 extraDataCasted;
              // Cast `extraData` with assembly to avoid redundant masking.
              assembly {
                  extraDataCasted := extraData
              }
              packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);
              ERC721AStorage.layout()._packedOwnerships[index] = packed;
          }
          /**
           * @dev Called during each token transfer to set the 24bit `extraData` field.
           * Intended to be overridden by the cosumer contract.
           *
           * `previousExtraData` - the value of `extraData` before transfer.
           *
           * Calling conditions:
           *
           * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
           * transferred to `to`.
           * - When `from` is zero, `tokenId` will be minted for `to`.
           * - When `to` is zero, `tokenId` will be burned by `from`.
           * - `from` and `to` are never both zero.
           */
          function _extraData(address from, address to, uint24 previousExtraData) internal view virtual returns (uint24) {}
          /**
           * @dev Returns the next extra data for the packed ownership data.
           * The returned result is shifted into position.
           */
          function _nextExtraData(address from, address to, uint256 prevOwnershipPacked) private view returns (uint256) {
              uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
              return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
          }
          // =============================================================
          //                       OTHER OPERATIONS
          // =============================================================
          /**
           * @dev Returns the message sender (defaults to `msg.sender`).
           *
           * If you are writing GSN compatible contracts, you need to override this function.
           */
          function _msgSenderERC721A() internal view virtual returns (address) {
              return msg.sender;
          }
          /**
           * @dev Converts a uint256 to its ASCII string decimal representation.
           */
          function _toString(uint256 value) internal pure virtual returns (string memory str) {
              assembly {
                  // The maximum value of a uint256 contains 78 digits (1 byte per digit), but
                  // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
                  // We will need 1 word for the trailing zeros padding, 1 word for the length,
                  // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.
                  let m := add(mload(0x40), 0xa0)
                  // Update the free memory pointer to allocate.
                  mstore(0x40, m)
                  // Assign the `str` to the end.
                  str := sub(m, 0x20)
                  // Zeroize the slot after the string.
                  mstore(str, 0)
                  // Cache the end of the memory to calculate the length later.
                  let end := str
                  // We write the string from rightmost digit to leftmost digit.
                  // The following is essentially a do-while loop that also handles the zero case.
                  // prettier-ignore
                  for { let temp := value } 1 {} {
                      str := sub(str, 1)
                      // Write the character to the pointer.
                      // The ASCII index of the '0' character is 48.
                      mstore8(str, add(48, mod(temp, 10)))
                      // Keep dividing `temp` until zero.
                      temp := div(temp, 10)
                      // prettier-ignore
                      if iszero(temp) { break }
                  }
                  let length := sub(end, str)
                  // Move the pointer 32 bytes leftwards to make room for the length.
                  str := sub(str, 0x20)
                  // Store the length.
                  mstore(str, length)
              }
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure virtual {
              assembly {
                  mstore(0x00, errorSelector)
                  revert(0x00, 0x04)
              }
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721URIStorage.sol)
      pragma solidity 0.8.10;
      import "./ERC721AUpgradeable.sol";
      import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
      import "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol";
      /**
       * @title Appending URI storage utilities onto template ERC721A contract
       * @author highlight.xyz, OpenZeppelin
       * @dev ERC721 token with storage based token URI management. OpenZeppelin template edited by Highlight
       */
      /* solhint-disable */
      abstract contract ERC721AURIStorageUpgradeable is Initializable, ERC721AUpgradeable {
          /**
           * @notice Throw when token doesn't exist
           */
          error TokenDoesNotExist();
          function __ERC721URIStorage_init() internal onlyInitializing {}
          function __ERC721URIStorage_init_unchained() internal onlyInitializing {}
          using StringsUpgradeable for uint256;
          // Optional mapping for token URIs
          mapping(uint256 => string) internal _tokenURIs;
          /**
           * @dev Hashed rotation key data
           */
          bytes internal _hashedRotationKeyData;
          /**
           * @dev Hashed base uri data
           */
          bytes internal _hashedBaseURIData;
          /**
           * @dev Rotation key
           */
          uint256 internal _rotationKey;
          /**
           * @dev Contract baseURI
           */
          string public baseURI;
          /**
           * @notice Emitted when base uri is set
           * @param oldBaseUri Old base uri
           * @param newBaseURI New base uri
           */
          event BaseURISet(string oldBaseUri, string newBaseURI);
          /**
           * @dev Set contract baseURI
           */
          function _setBaseURI(string memory newBaseURI) internal {
              emit BaseURISet(baseURI, newBaseURI);
              baseURI = newBaseURI;
          }
          /**
           * @dev See {IERC721Metadata-tokenURI}.
           */
          function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
              if (!_exists(tokenId)) {
                  _revert(TokenDoesNotExist.selector);
              }
              string memory _tokenURI = _tokenURIs[tokenId];
              // If there is no token URI, return the base URI.
              if (bytes(_tokenURI).length == 0) {
                  return super.tokenURI(tokenId);
              }
              return _tokenURI;
          }
          /**
           * @dev See {ERC721-_burn}. This override additionally checks to see if a
           * token-specific URI was set for the token, and if so, it deletes the token URI from
           * the storage mapping.
           */
          function _burn(uint256 tokenId) internal virtual override {
              super._burn(tokenId);
              if (bytes(_tokenURIs[tokenId]).length != 0) {
                  delete _tokenURIs[tokenId];
              }
          }
          function _baseURI() internal view override returns (string memory) {
              return baseURI;
          }
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[49] private __gap;
      }
      // SPDX-License-Identifier: MIT
      // ERC721A Contracts v4.2.3
      // Creator: Chiru Labs
      pragma solidity 0.8.10;
      /* solhint-disable */
      /**
       * @dev Interface of ERC721A.
       */
      interface IERC721AUpgradeable {
          /**
           * The caller must own the token or be an approved operator.
           */
          error ApprovalCallerNotOwnerNorApproved();
          /**
           * The token does not exist.
           */
          error ApprovalQueryForNonexistentToken();
          /**
           * Cannot query the balance for the zero address.
           */
          error BalanceQueryForZeroAddress();
          /**
           * Cannot mint to the zero address.
           */
          error MintToZeroAddress();
          /**
           * The quantity of tokens minted must be more than zero.
           */
          error MintZeroQuantity();
          /**
           * The token does not exist.
           */
          error OwnerQueryForNonexistentToken();
          /**
           * The caller must own the token or be an approved operator.
           */
          error TransferCallerNotOwnerNorApproved();
          /**
           * The token must be owned by `from`.
           */
          error TransferFromIncorrectOwner();
          /**
           * Cannot safely transfer to a contract that does not implement the
           * ERC721Receiver interface.
           */
          error TransferToNonERC721ReceiverImplementer();
          /**
           * Cannot transfer to the zero address.
           */
          error TransferToZeroAddress();
          /**
           * The token does not exist.
           */
          error URIQueryForNonexistentToken();
          /**
           * The `quantity` minted with ERC2309 exceeds the safety limit.
           */
          error MintERC2309QuantityExceedsLimit();
          /**
           * The `extraData` cannot be set on an unintialized ownership slot.
           */
          error OwnershipNotInitializedForExtraData();
          // =============================================================
          //                            STRUCTS
          // =============================================================
          struct TokenOwnership {
              // The address of the owner.
              address addr;
              // Stores the start time of ownership with minimal overhead for tokenomics.
              uint64 startTimestamp;
              // Whether the token has been burned.
              bool burned;
              // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
              uint24 extraData;
          }
          // =============================================================
          //                         TOKEN COUNTERS
          // =============================================================
          /**
           * @dev Returns the total number of tokens in existence.
           * Burned tokens will reduce the count.
           * To get the total number of tokens minted, please see {_totalMinted}.
           */
          function totalSupply() external view returns (uint256);
          // =============================================================
          //                            IERC165
          // =============================================================
          /**
           * @dev Returns true if this contract implements the interface defined by
           * `interfaceId`. See the corresponding
           * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
           * to learn more about how these ids are created.
           *
           * This function call must use less than 30000 gas.
           */
          function supportsInterface(bytes4 interfaceId) external view returns (bool);
          // =============================================================
          //                            IERC721
          // =============================================================
          /**
           * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
           */
          event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
          /**
           * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
           */
          event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
          /**
           * @dev Emitted when `owner` enables or disables
           * (`approved`) `operator` to manage all of its assets.
           */
          event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
          /**
           * @dev Returns the number of tokens in `owner`'s account.
           */
          function balanceOf(address owner) external view returns (uint256 balance);
          /**
           * @dev Returns the owner of the `tokenId` token.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function ownerOf(uint256 tokenId) external view returns (address owner);
          /**
           * @dev Safely transfers `tokenId` token from `from` to `to`,
           * checking first that contract recipients are aware of the ERC721 protocol
           * to prevent tokens from being forever locked.
           *
           * Requirements:
           *
           * - `from` cannot be the zero address.
           * - `to` cannot be the zero address.
           * - `tokenId` token must exist and be owned by `from`.
           * - If the caller is not `from`, it must be have been allowed to move
           * this token by either {approve} or {setApprovalForAll}.
           * - If `to` refers to a smart contract, it must implement
           * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
           *
           * Emits a {Transfer} event.
           */
          function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external payable;
          /**
           * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
           */
          function safeTransferFrom(address from, address to, uint256 tokenId) external payable;
          /**
           * @dev Transfers `tokenId` from `from` to `to`.
           *
           * WARNING: Usage of this method is discouraged, use {safeTransferFrom}
           * whenever possible.
           *
           * Requirements:
           *
           * - `from` cannot be the zero address.
           * - `to` cannot be the zero address.
           * - `tokenId` token must be owned by `from`.
           * - If the caller is not `from`, it must be approved to move this token
           * by either {approve} or {setApprovalForAll}.
           *
           * Emits a {Transfer} event.
           */
          function transferFrom(address from, address to, uint256 tokenId) external payable;
          /**
           * @dev Gives permission to `to` to transfer `tokenId` token to another account.
           * The approval is cleared when the token is transferred.
           *
           * Only a single account can be approved at a time, so approving the
           * zero address clears previous approvals.
           *
           * Requirements:
           *
           * - The caller must own the token or be an approved operator.
           * - `tokenId` must exist.
           *
           * Emits an {Approval} event.
           */
          function approve(address to, uint256 tokenId) external payable;
          /**
           * @dev Approve or remove `operator` as an operator for the caller.
           * Operators can call {transferFrom} or {safeTransferFrom}
           * for any token owned by the caller.
           *
           * Requirements:
           *
           * - The `operator` cannot be the caller.
           *
           * Emits an {ApprovalForAll} event.
           */
          function setApprovalForAll(address operator, bool _approved) external;
          /**
           * @dev Returns the account approved for `tokenId` token.
           *
           * Requirements:
           *
           * - `tokenId` must exist.
           */
          function getApproved(uint256 tokenId) external view returns (address operator);
          /**
           * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
           *
           * See {setApprovalForAll}.
           */
          function isApprovedForAll(address owner, address operator) external view returns (bool);
          // =============================================================
          //                        IERC721Metadata
          // =============================================================
          /**
           * @dev Returns the token collection name.
           */
          function name() external view returns (string memory);
          /**
           * @dev Returns the token collection symbol.
           */
          function symbol() external view returns (string memory);
          /**
           * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
           */
          function tokenURI(uint256 tokenId) external view returns (string memory);
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "../royaltyManager/interfaces/IRoyaltyManager.sol";
      import "../tokenManager/interfaces/ITokenManager.sol";
      import "../utils/Ownable.sol";
      import "../utils/ERC2981/IERC2981Upgradeable.sol";
      import "../utils/ERC165/ERC165CheckerUpgradeable.sol";
      import "../metatx/ERC2771ContextUpgradeable.sol";
      import "../observability/IObservability.sol";
      import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
      import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
      import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
      /**
       * @title Base ERC721
       * @author highlight.xyz
       * @notice Core piece of Highlight NFT contracts (v2)
       */
      abstract contract ERC721Base is
          OwnableUpgradeable,
          IERC2981Upgradeable,
          ERC2771ContextUpgradeable,
          ReentrancyGuardUpgradeable
      {
          using EnumerableSet for EnumerableSet.AddressSet;
          using ERC165CheckerUpgradeable for address;
          /**
           * @notice Throw when token or royalty manager is invalid
           */
          error InvalidManager();
          /**
           * @notice Throw when token or royalty manager does not exist
           */
          error ManagerDoesNotExist();
          /**
           * @notice Throw when sender is unauthorized to perform action
           */
          error Unauthorized();
          /**
           * @notice Throw when sender is not a minter
           */
          error NotMinter();
          /**
           * @notice Throw when token manager or royalty manager swap is blocked
           */
          error ManagerSwapBlocked();
          /**
           * @notice Throw when token manager or royalty manager remove is blocked
           */
          error ManagerRemoveBlocked();
          /**
           * @notice Throw when setting default or granular royalty is blocked
           */
          error RoyaltySetBlocked();
          /**
           * @notice Throw when royalty BPS is invalid
           */
          error RoyaltyBPSInvalid();
          /**
           * @notice Throw when minter registration is invalid
           */
          error MinterRegistrationInvalid();
          /**
           * @notice Set of minters allowed to mint on contract
           */
          EnumerableSet.AddressSet internal _minters;
          /**
           * @notice Global token/edition manager default
           */
          address public defaultManager;
          /**
           * @notice Token/edition managers per token grouping.
           *      Edition ID if implemented by Editions contract, and token ID if implemented by General contract.
           */
          mapping(uint256 => address) internal _managers;
          /**
           * @notice Default royalty for entire contract
           */
          IRoyaltyManager.Royalty internal _defaultRoyalty;
          /**
           * @notice Royalty per token grouping.
           *      Edition ID if implemented by Editions contract, and token ID if implemented by General contract.
           */
          mapping(uint256 => IRoyaltyManager.Royalty) internal _royalties;
          /**
           * @notice Royalty manager - optional contract that defines the conditions around setting royalties
           */
          address public royaltyManager;
          /**
           * @notice Freezes minting on smart contract forever
           */
          uint8 internal _mintFrozen;
          /**
           * @notice Observability contract
           */
          IObservability public observability;
          /**
           * @notice Emitted when minter is registered or unregistered
           * @param minter Minter that was changed
           * @param registered True if the minter was registered, false if unregistered
           */
          event MinterRegistrationChanged(address indexed minter, bool indexed registered);
          /**
           * @notice Emitted when token managers are set for token/edition ids
           * @param _ids Edition / token ids
           * @param _tokenManagers Token managers to set for tokens / editions
           */
          event GranularTokenManagersSet(uint256[] _ids, address[] _tokenManagers);
          /**
           * @notice Emitted when token managers are removed for token/edition ids
           * @param _ids Edition / token ids to remove token managers for
           */
          event GranularTokenManagersRemoved(uint256[] _ids);
          /**
           * @notice Emitted when default token manager changed
           * @param newDefaultTokenManager New default token manager. Zero address if old one was removed
           */
          event DefaultTokenManagerChanged(address indexed newDefaultTokenManager);
          /**
           * @notice Emitted when default royalty is set
           * @param recipientAddress Royalty recipient
           * @param royaltyPercentageBPS Percentage of sale (in basis points) owed to royalty recipient
           */
          event DefaultRoyaltySet(address indexed recipientAddress, uint16 indexed royaltyPercentageBPS);
          /**
           * @notice Emitted when royalties are set for edition / token ids
           * @param ids Token / edition ids
           * @param _newRoyalties New royalties for each token / edition
           */
          event GranularRoyaltiesSet(uint256[] ids, IRoyaltyManager.Royalty[] _newRoyalties);
          /**
           * @notice Emitted when royalty manager is updated
           * @param newRoyaltyManager New royalty manager. Zero address if old one was removed
           */
          event RoyaltyManagerChanged(address indexed newRoyaltyManager);
          /**
           * @notice Emitted when mints are frozen permanently
           */
          event MintsFrozen();
          /**
           * @notice Restricts calls to minters
           */
          modifier onlyMinter() {
              if (!_minters.contains(_msgSender())) {
                  _revert(NotMinter.selector);
              }
              _;
          }
          /**
           * @notice Restricts calls if input royalty bps is over 10000
           */
          modifier royaltyValid(uint16 _royaltyBPS) {
              if (!_royaltyBPSValid(_royaltyBPS)) {
                  _revert(RoyaltyBPSInvalid.selector);
              }
              _;
          }
          /**
           * @notice Registers a minter
           * @param minter New minter
           */
          function registerMinter(address minter) external onlyOwner {
              if (!_minters.add(minter)) {
                  _revert(MinterRegistrationInvalid.selector);
              }
              emit MinterRegistrationChanged(minter, true);
              observability.emitMinterRegistrationChanged(minter, true);
          }
          /**
           * @notice Unregisters a minter
           * @param minter Minter to unregister
           */
          function unregisterMinter(address minter) external onlyOwner {
              if (!_minters.remove(minter)) {
                  _revert(MinterRegistrationInvalid.selector);
              }
              emit MinterRegistrationChanged(minter, false);
              observability.emitMinterRegistrationChanged(minter, false);
          }
          /**
           * @notice Sets granular token managers if current token manager(s) allow it
           * @param _ids Edition / token ids
           * @param _tokenManagers Token managers to set for tokens / editions
           */
          function setGranularTokenManagers(
              uint256[] calldata _ids,
              address[] calldata _tokenManagers
          ) external nonReentrant {
              address msgSender = _msgSender();
              address tempOwner = owner();
              uint256 idsLength = _ids.length;
              for (uint256 i = 0; i < idsLength; i++) {
                  if (!_isValidTokenManager(_tokenManagers[i])) {
                      _revert(InvalidManager.selector);
                  }
                  address currentTokenManager = tokenManager(_ids[i]);
                  if (currentTokenManager == address(0)) {
                      if (msgSender != tempOwner) {
                          _revert(Unauthorized.selector);
                      }
                  } else {
                      if (!ITokenManager(currentTokenManager).canSwap(msgSender, _ids[i], _managers[i])) {
                          _revert(ManagerSwapBlocked.selector);
                      }
                  }
                  _managers[_ids[i]] = _tokenManagers[i];
              }
              emit GranularTokenManagersSet(_ids, _tokenManagers);
              observability.emitGranularTokenManagersSet(_ids, _tokenManagers);
          }
          /**
           * @notice Remove granular token managers
           * @param _ids Edition / token ids to remove token managers for
           */
          function removeGranularTokenManagers(uint256[] calldata _ids) external nonReentrant {
              address msgSender = _msgSender();
              uint256 idsLength = _ids.length;
              for (uint256 i = 0; i < idsLength; i++) {
                  address currentTokenManager = _managers[_ids[i]];
                  if (currentTokenManager == address(0)) {
                      _revert(ManagerDoesNotExist.selector);
                  }
                  if (!ITokenManager(currentTokenManager).canRemoveItself(msgSender, _ids[i])) {
                      _revert(ManagerRemoveBlocked.selector);
                  }
                  _managers[_ids[i]] = address(0);
              }
              emit GranularTokenManagersRemoved(_ids);
              observability.emitGranularTokenManagersRemoved(_ids);
          }
          /**
           * @notice Set default token manager if current token manager allows it
           * @param _defaultTokenManager New default token manager
           */
          function setDefaultTokenManager(address _defaultTokenManager) external nonReentrant {
              if (!_isValidTokenManager(_defaultTokenManager)) {
                  _revert(InvalidManager.selector);
              }
              address msgSender = _msgSender();
              address currentTokenManager = defaultManager;
              if (currentTokenManager == address(0)) {
                  if (msgSender != owner()) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!ITokenManager(currentTokenManager).canSwap(msgSender, 0, _defaultTokenManager)) {
                      _revert(ManagerSwapBlocked.selector);
                  }
              }
              defaultManager = _defaultTokenManager;
              emit DefaultTokenManagerChanged(_defaultTokenManager);
              observability.emitDefaultTokenManagerChanged(_defaultTokenManager);
          }
          /**
           * @notice Removes default token manager if current token manager allows it
           */
          function removeDefaultTokenManager() external nonReentrant {
              address msgSender = _msgSender();
              address currentTokenManager = defaultManager;
              if (currentTokenManager == address(0)) {
                  _revert(ManagerDoesNotExist.selector);
              }
              if (!ITokenManager(currentTokenManager).canRemoveItself(msgSender, 0)) {
                  _revert(ManagerRemoveBlocked.selector);
              }
              defaultManager = address(0);
              emit DefaultTokenManagerChanged(address(0));
              observability.emitDefaultTokenManagerChanged(address(0));
          }
          /**
           * @notice Sets default royalty if royalty manager allows it
           * @param _royalty New default royalty
           */
          function setDefaultRoyalty(
              IRoyaltyManager.Royalty calldata _royalty
          ) external nonReentrant royaltyValid(_royalty.royaltyPercentageBPS) {
              address msgSender = _msgSender();
              address _royaltyManager = royaltyManager;
              if (_royaltyManager == address(0)) {
                  if (msgSender != owner()) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!IRoyaltyManager(_royaltyManager).canSetDefaultRoyalty(_royalty, msgSender)) {
                      _revert(RoyaltySetBlocked.selector);
                  }
              }
              _defaultRoyalty = _royalty;
              emit DefaultRoyaltySet(_royalty.recipientAddress, _royalty.royaltyPercentageBPS);
              observability.emitDefaultRoyaltySet(_royalty.recipientAddress, _royalty.royaltyPercentageBPS);
          }
          /**
           * @notice Sets granular royalties (per token-grouping) if royalty manager allows it
           * @param ids Token / edition ids
           * @param _newRoyalties New royalties for each token / edition
           */
          function setGranularRoyalties(
              uint256[] calldata ids,
              IRoyaltyManager.Royalty[] calldata _newRoyalties
          ) external nonReentrant {
              address msgSender = _msgSender();
              address tempOwner = owner();
              address _royaltyManager = royaltyManager;
              uint256 idsLength = ids.length;
              if (_royaltyManager == address(0)) {
                  if (msgSender != tempOwner) {
                      _revert(Unauthorized.selector);
                  }
                  for (uint256 i = 0; i < idsLength; i++) {
                      if (!_royaltyBPSValid(_newRoyalties[i].royaltyPercentageBPS)) {
                          _revert(RoyaltyBPSInvalid.selector);
                      }
                      _royalties[ids[i]] = _newRoyalties[i];
                  }
              } else {
                  for (uint256 i = 0; i < idsLength; i++) {
                      if (!_royaltyBPSValid(_newRoyalties[i].royaltyPercentageBPS)) {
                          _revert(RoyaltyBPSInvalid.selector);
                      }
                      if (!IRoyaltyManager(_royaltyManager).canSetGranularRoyalty(ids[i], _newRoyalties[i], msgSender)) {
                          _revert(RoyaltySetBlocked.selector);
                      }
                      _royalties[ids[i]] = _newRoyalties[i];
                  }
              }
              emit GranularRoyaltiesSet(ids, _newRoyalties);
              observability.emitGranularRoyaltiesSet(ids, _newRoyalties);
          }
          /**
           * @notice Sets royalty manager if current one allows it
           * @param _royaltyManager New royalty manager
           */
          function setRoyaltyManager(address _royaltyManager) external nonReentrant {
              if (!_isValidRoyaltyManager(_royaltyManager)) {
                  _revert(InvalidManager.selector);
              }
              address msgSender = _msgSender();
              address currentRoyaltyManager = royaltyManager;
              if (currentRoyaltyManager == address(0)) {
                  if (msgSender != owner()) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!IRoyaltyManager(currentRoyaltyManager).canSwap(_royaltyManager, msgSender)) {
                      _revert(ManagerSwapBlocked.selector);
                  }
              }
              royaltyManager = _royaltyManager;
              emit RoyaltyManagerChanged(_royaltyManager);
              observability.emitRoyaltyManagerChanged(_royaltyManager);
          }
          /**
           * @notice Removes royalty manager if current one allows it
           */
          function removeRoyaltyManager() external nonReentrant {
              address msgSender = _msgSender();
              address currentRoyaltyManager = royaltyManager;
              if (currentRoyaltyManager == address(0)) {
                  _revert(ManagerDoesNotExist.selector);
              }
              if (!IRoyaltyManager(currentRoyaltyManager).canRemoveItself(msgSender)) {
                  _revert(ManagerRemoveBlocked.selector);
              }
              royaltyManager = address(0);
              emit RoyaltyManagerChanged(address(0));
              observability.emitRoyaltyManagerChanged(address(0));
          }
          /**
           * @notice Freeze mints on contract forever
           */
          function freezeMints() external onlyOwner nonReentrant {
              _mintFrozen = 1;
              emit MintsFrozen();
              observability.emitMintsFrozen();
          }
          /**
           * @notice Return allowed minters on contract
           */
          function minters() external view returns (address[] memory) {
              return _minters.values();
          }
          /**
           * @notice Conforms to ERC-2981. Editions should overwrite to return royalty for entire edition
           * @param _tokenGroupingId Token id if on general, and edition id if on editions
           * @param _salePrice Sale price of token
           */
          function royaltyInfo(
              uint256 _tokenGroupingId,
              uint256 _salePrice
          ) public view virtual override returns (address receiver, uint256 royaltyAmount) {
              IRoyaltyManager.Royalty memory royalty = _royalties[_tokenGroupingId];
              if (royalty.recipientAddress == address(0)) {
                  royalty = _defaultRoyalty;
              }
              receiver = royalty.recipientAddress;
              royaltyAmount = (_salePrice * uint256(royalty.royaltyPercentageBPS)) / 10000;
          }
          /**
           * @notice Returns the token manager for the id passed in.
           * @param id Token ID or Edition ID for Editions implementing contracts
           */
          function tokenManager(uint256 id) public view returns (address manager) {
              manager = defaultManager;
              address granularManager = _managers[id];
              if (granularManager != address(0)) {
                  manager = granularManager;
              }
          }
          /**
           * @notice Initializes the contract, setting the creator as the initial owner.
           * @param _creator Contract creator
           * @param defaultRoyalty Default royalty for the contract
           * @param _defaultTokenManager Default token manager for the contract
           */
          function __ERC721Base_initialize(
              address _creator,
              IRoyaltyManager.Royalty memory defaultRoyalty,
              address _defaultTokenManager
          ) internal onlyInitializing royaltyValid(defaultRoyalty.royaltyPercentageBPS) {
              __Ownable_init();
              __ReentrancyGuard_init();
              _transferOwnership(_creator);
              if (defaultRoyalty.recipientAddress != address(0)) {
                  _defaultRoyalty = defaultRoyalty;
              }
              if (_defaultTokenManager != address(0)) {
                  defaultManager = _defaultTokenManager;
              }
          }
          /**
           * @notice Returns true if address is a valid tokenManager
           * @param _tokenManager Token manager being checked
           */
          function _isValidTokenManager(address _tokenManager) internal view returns (bool) {
              return _tokenManager.supportsInterface(type(ITokenManager).interfaceId);
          }
          /**
           * @notice Returns true if address is a valid royaltyManager
           * @param _royaltyManager Royalty manager being checked
           */
          function _isValidRoyaltyManager(address _royaltyManager) internal view returns (bool) {
              return _royaltyManager.supportsInterface(type(IRoyaltyManager).interfaceId);
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgSender()
              internal
              view
              virtual
              override(ContextUpgradeable, ERC2771ContextUpgradeable)
              returns (address sender)
          {
              return ERC2771ContextUpgradeable._msgSender();
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure virtual {
              assembly {
                  mstore(0x00, errorSelector)
                  revert(0x00, 0x04)
              }
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgData()
              internal
              view
              virtual
              override(ContextUpgradeable, ERC2771ContextUpgradeable)
              returns (bytes calldata)
          {
              return ERC2771ContextUpgradeable._msgData();
          }
          /**
           * @notice Returns true if royalty bps passed in is valid (<= 10000)
           * @param _royaltyBPS Royalty basis points
           */
          function _royaltyBPSValid(uint16 _royaltyBPS) private pure returns (bool) {
              return _royaltyBPS <= 10000;
          }
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "./ERC721Base.sol";
      import "../metadata/MetadataEncryption.sol";
      import "../tokenManager/interfaces/IPostTransfer.sol";
      import "../tokenManager/interfaces/IPostBurn.sol";
      import "./interfaces/IERC721GeneralMint.sol";
      import "./ERC721GeneralSequenceBase.sol";
      import "./onchain/OnchainFileStorage.sol";
      /**
       * @title Generalized ERC721 that expects tokenIds to increment in a monotonically increasing sequence
       * @author highlight.xyz
       * @notice Generalized NFT smart contract
       */
      contract ERC721GeneralSequence is ERC721GeneralSequenceBase, OnchainFileStorage {
          using EnumerableSet for EnumerableSet.AddressSet;
          /**
           * @notice Initialize the contract
           * @param creator Creator/owner of contract
           * @param _contractURI Contract metadata
           * @param defaultRoyalty Default royalty object for contract (optional)
           * @param _defaultTokenManager Default token manager for contract (optional)
           * @param _name Name of token edition
           * @param _symbol Symbol of the token edition
           * @param trustedForwarder Trusted minimal forwarder
           * @param initialMinter Initial minter to register
           * @param newBaseURI Base URI for contract
           * @param _limitSupply Initial limit supply
           * @param useMarketplaceFiltererRegistry Denotes whether to use marketplace filterer registry
           * @param _observability Observability contract address
           */
          function initialize(
              address creator,
              string memory _contractURI,
              IRoyaltyManager.Royalty memory defaultRoyalty,
              address _defaultTokenManager,
              string memory _name,
              string memory _symbol,
              address trustedForwarder,
              address initialMinter,
              string memory newBaseURI,
              uint256 _limitSupply,
              bool useMarketplaceFiltererRegistry,
              address _observability
          ) external initializer {
              _initialize(
                  creator,
                  _contractURI,
                  defaultRoyalty,
                  _defaultTokenManager,
                  _name,
                  _symbol,
                  trustedForwarder,
                  initialMinter,
                  newBaseURI,
                  _limitSupply,
                  useMarketplaceFiltererRegistry,
                  _observability
              );
          }
          /**
           * @notice Initialize the contract
           * @param creator Creator/owner of contract
           * @param data Data to initialize the contract
           * @ param _contractURI Contract metadata
           * @ param defaultRoyalty Default royalty object for contract (optional)
           * @ param _defaultTokenManager Default token manager for contract (optional)
           * @ param _name Name of token edition
           * @ param _symbol Symbol of the token edition
           * @ param trustedForwarder Trusted minimal forwarder
           * @ param initialMinter Initial minter to register
           * @ param newBaseURI Base URI for contract
           * @ param _limitSupply Initial limit supply
           * @ param useMarketplaceFiltererRegistry Denotes whether to use marketplace filterer registry
           * @ param _observability Observability contract address
           */
          function initialize(address creator, bytes memory data) external initializer {
              (
                  string memory _contractURI,
                  IRoyaltyManager.Royalty memory defaultRoyalty,
                  address _defaultTokenManager,
                  string memory _name,
                  string memory _symbol,
                  address trustedForwarder,
                  address initialMinter,
                  string memory newBaseURI,
                  uint256 _limitSupply,
                  bool useMarketplaceFiltererRegistry,
                  address _observability
              ) = abi.decode(
                      data,
                      (
                          string,
                          IRoyaltyManager.Royalty,
                          address,
                          string,
                          string,
                          address,
                          address,
                          string,
                          uint256,
                          bool,
                          address
                      )
                  );
              _initialize(
                  creator,
                  _contractURI,
                  defaultRoyalty,
                  _defaultTokenManager,
                  _name,
                  _symbol,
                  trustedForwarder,
                  initialMinter,
                  newBaseURI,
                  _limitSupply,
                  useMarketplaceFiltererRegistry,
                  _observability
              );
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgSender()
              internal
              view
              virtual
              override(ERC721GeneralSequenceBase, ContextUpgradeable)
              returns (address sender)
          {
              return ERC721GeneralSequenceBase._msgSender();
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgData()
              internal
              view
              virtual
              override(ERC721GeneralSequenceBase, ContextUpgradeable)
              returns (bytes calldata)
          {
              return ERC721GeneralSequenceBase._msgData();
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure override(ERC721GeneralSequenceBase, OnchainFileStorage) {
              assembly {
                  mstore(0x00, errorSelector)
                  revert(0x00, 0x04)
              }
          }
          /**
           * @notice Initialize the contract
           * @param creator Creator/owner of contract
           * @param _contractURI Contract metadata
           * @param defaultRoyalty Default royalty object for contract (optional)
           * @param _defaultTokenManager Default token manager for contract (optional)
           * @param _name Name of token edition
           * @param _symbol Symbol of the token edition
           * @param trustedForwarder Trusted minimal forwarder
           * @param initialMinter Initial minter to register
           * @param newBaseURI Base URI for contract
           * @param _limitSupply Initial limit supply
           * @param useMarketplaceFiltererRegistry Denotes whether to use marketplace filterer registry
           * @param _observability Observability contract address
           */
          function _initialize(
              address creator,
              string memory _contractURI,
              IRoyaltyManager.Royalty memory defaultRoyalty,
              address _defaultTokenManager,
              string memory _name,
              string memory _symbol,
              address trustedForwarder,
              address initialMinter,
              string memory newBaseURI,
              uint256 _limitSupply,
              bool useMarketplaceFiltererRegistry,
              address _observability
          ) private {
              __ERC721URIStorage_init();
              __ERC721Base_initialize(creator, defaultRoyalty, _defaultTokenManager);
              __ERC2771ContextUpgradeable__init__(trustedForwarder);
              __ERC721A_init(_name, _symbol);
              // deprecate but keep input for backwards-compatibility:
              // __MarketplaceFilterer__init__(useMarketplaceFiltererRegistry);
              _minters.add(initialMinter);
              contractURI = _contractURI;
              IObservability(_observability).emitSeriesDeployed(address(this));
              observability = IObservability(_observability);
              if (bytes(newBaseURI).length > 0) {
                  _setBaseURI(newBaseURI);
                  // don't emit on observability contract here
              }
              if (_limitSupply > 0) {
                  limitSupply = _limitSupply;
                  // don't emit on observability contract here
              }
          }
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "./ERC721Base.sol";
      import "../metadata/MetadataEncryption.sol";
      import "../tokenManager/interfaces/IPostTransfer.sol";
      import "../tokenManager/interfaces/IPostBurn.sol";
      import "./interfaces/IERC721GeneralSequenceMint.sol";
      import "./erc721a/ERC721AURIStorageUpgradeable.sol";
      import "./inchain-rendering/interfaces/IHLRenderer.sol";
      /**
       * @title Generalized Base ERC721
       * @author highlight.xyz
       * @notice Generalized Base NFT smart contract
       */
      abstract contract ERC721GeneralSequenceBase is ERC721Base, ERC721AURIStorageUpgradeable, IERC721GeneralSequenceMint {
          using EnumerableSet for EnumerableSet.AddressSet;
          /**
           * @notice Throw when attempting to mint, while mint is frozen
           */
          error MintFrozen();
          /**
           * @notice Throw when requested token is not in range within bounds of limit supply
           */
          error TokenNotInRange();
          /**
           * @notice Throw when new supply is over limit supply
           */
          error OverLimitSupply();
          /**
           * @notice Throw when array lengths are mismatched
           */
          error MismatchedArrayLengths();
          /**
           * @notice Throw when string is empty
           */
          error EmptyString();
          /**
           * @notice Custom renderer config, used for collections where metadata is rendered "in-chain"
           * @param renderer Renderer address
           * @param processMintDataOnRenderer If true, process mint data on renderer
           */
          struct CustomRendererConfig {
              address renderer;
              bool processMintDataOnRenderer;
          }
          /**
           * @notice Contract metadata
           */
          string public contractURI;
          /**
           * @notice Limit the supply to take advantage of over-promising in summation with multiple mint vectors
           */
          uint256 public limitSupply;
          /**
           * @notice Custom renderer config
           */
          CustomRendererConfig public customRendererConfig;
          /**
           * @notice Emitted when uris are set for tokens
           * @param ids IDs of tokens to set uris for
           * @param uris Uris to set on tokens
           */
          event TokenURIsSet(uint256[] ids, string[] uris);
          /**
           * @notice Emitted when limit supply is set
           * @param newLimitSupply Limit supply to set
           */
          event LimitSupplySet(uint256 indexed newLimitSupply);
          /**
           * @notice See {IERC721GeneralMint-mintOneToOneRecipient}
           */
          function mintOneToOneRecipient(address recipient) external virtual onlyMinter nonReentrant returns (uint256) {
              if (_mintFrozen == 1) {
                  _revert(MintFrozen.selector);
              }
              uint256 tempSupply = _nextTokenId();
              _requireLimitSupply(tempSupply);
              _mint(recipient, 1);
              // process mint on custom renderer if present
              CustomRendererConfig memory _customRendererConfig = customRendererConfig;
              if (_customRendererConfig.processMintDataOnRenderer) {
                  IHLRenderer(_customRendererConfig.renderer).processOneRecipientMint(tempSupply, 1, recipient);
              }
              return tempSupply;
          }
          /**
           * @notice See {IERC721GeneralMint-mintAmountToOneRecipient}
           */
          function mintAmountToOneRecipient(address recipient, uint256 amount) external virtual onlyMinter nonReentrant {
              if (_mintFrozen == 1) {
                  _revert(MintFrozen.selector);
              }
              uint256 tempSupply = _nextTokenId() - 1; // cache
              _mint(recipient, amount);
              _requireLimitSupply(tempSupply + amount);
              // process mint on custom renderer if present
              CustomRendererConfig memory _customRendererConfig = customRendererConfig;
              if (_customRendererConfig.processMintDataOnRenderer) {
                  IHLRenderer(_customRendererConfig.renderer).processOneRecipientMint(tempSupply + 1, amount, recipient);
              }
          }
          /**
           * @notice See {IERC721GeneralMint-mintOneToMultipleRecipients}
           */
          function mintOneToMultipleRecipients(address[] calldata recipients) external onlyMinter nonReentrant {
              if (_mintFrozen == 1) {
                  _revert(MintFrozen.selector);
              }
              uint256 recipientsLength = recipients.length;
              uint256 tempSupply = _nextTokenId() - 1; // cache
              for (uint256 i = 0; i < recipientsLength; i++) {
                  _mint(recipients[i], 1);
              }
              _requireLimitSupply(tempSupply + recipientsLength);
              // process mint on custom renderer if present
              CustomRendererConfig memory _customRendererConfig = customRendererConfig;
              if (_customRendererConfig.processMintDataOnRenderer) {
                  IHLRenderer(_customRendererConfig.renderer).processMultipleRecipientMint(tempSupply + 1, 1, recipients);
              }
          }
          /**
           * @notice See {IERC721GeneralMint-mintSameAmountToMultipleRecipients}
           */
          function mintSameAmountToMultipleRecipients(
              address[] calldata recipients,
              uint256 amount
          ) external onlyMinter nonReentrant {
              if (_mintFrozen == 1) {
                  _revert(MintFrozen.selector);
              }
              uint256 recipientsLength = recipients.length;
              uint256 tempSupply = _nextTokenId() - 1; // cache
              for (uint256 i = 0; i < recipientsLength; i++) {
                  _mint(recipients[i], amount);
              }
              _requireLimitSupply(tempSupply + recipientsLength * amount);
              // process mint on custom renderer if present
              CustomRendererConfig memory _customRendererConfig = customRendererConfig;
              if (_customRendererConfig.processMintDataOnRenderer) {
                  IHLRenderer(_customRendererConfig.renderer).processMultipleRecipientMint(
                      tempSupply + 1,
                      amount,
                      recipients
                  );
              }
          }
          /**
           * @notice Set custom renderer and processing config
           * @param _customRendererConfig New custom renderer config
           */
          function setCustomRenderer(CustomRendererConfig calldata _customRendererConfig) external onlyOwner {
              require(_customRendererConfig.renderer != address(0), "Invalid input");
              customRendererConfig = _customRendererConfig;
          }
          /**
           * @notice Override base URI system for select tokens, with custom per-token metadata
           * @param ids IDs of tokens to override base uri system for with custom uris
           * @param uris Custom uris
           */
          function setTokenURIs(uint256[] calldata ids, string[] calldata uris) external nonReentrant {
              uint256 idsLength = ids.length;
              if (idsLength != uris.length) {
                  _revert(MismatchedArrayLengths.selector);
              }
              for (uint256 i = 0; i < idsLength; i++) {
                  _setTokenURI(ids[i], uris[i]);
              }
              emit TokenURIsSet(ids, uris);
              observability.emitTokenURIsSet(ids, uris);
          }
          /**
           * @notice Set base uri
           * @param newBaseURI New base uri to set
           */
          function setBaseURI(string calldata newBaseURI) external nonReentrant {
              if (bytes(newBaseURI).length == 0) {
                  _revert(EmptyString.selector);
              }
              address _manager = defaultManager;
              if (_manager == address(0)) {
                  if (_msgSender() != owner()) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!ITokenManager(_manager).canUpdateMetadata(_msgSender(), 0, bytes(newBaseURI))) {
                      _revert(Unauthorized.selector);
                  }
              }
              _setBaseURI(newBaseURI);
              observability.emitBaseUriSet(newBaseURI);
          }
          /**
           * @notice Set limit supply
           * @param _limitSupply Limit supply to set
           */
          function setLimitSupply(uint256 _limitSupply) external onlyOwner nonReentrant {
              // allow it to be 0, for post-mint
              limitSupply = _limitSupply;
              emit LimitSupplySet(_limitSupply);
              observability.emitLimitSupplySet(_limitSupply);
          }
          /**
           * @notice Set contract name
           * @param newName New name
           * @param newSymbol New symbol
           * @param newContractUri New contractURI
           */
          function setContractMetadata(
              string calldata newName,
              string calldata newSymbol,
              string calldata newContractUri
          ) external onlyOwner {
              _setContractMetadata(newName, newSymbol);
              contractURI = newContractUri;
              observability.emitContractMetadataSet(newName, newSymbol, newContractUri);
          }
          /**
           * @notice Return the total number of minted tokens on the collection
           */
          function supply() external view returns (uint256) {
              return ERC721AUpgradeable._totalMinted();
          }
          /**
           * @notice See {IERC721-burn}. Overrides default behaviour to check associated tokenManager.
           */
          function burn(uint256 tokenId) public nonReentrant {
              address _manager = tokenManager(tokenId);
              address msgSender = _msgSender();
              if (_manager != address(0) && IERC165Upgradeable(_manager).supportsInterface(type(IPostBurn).interfaceId)) {
                  address owner = ownerOf(tokenId);
                  IPostBurn(_manager).postBurn(msgSender, owner, tokenId);
              } else {
                  // default to restricting burn to owner or operator if a valid TM isn't present
                  if (!_isApprovedOrOwner(msgSender, tokenId)) {
                      _revert(Unauthorized.selector);
                  }
              }
              _burn(tokenId);
              observability.emitTransfer(msgSender, address(0), tokenId);
          }
          /**
           * @notice Overrides tokenURI to first rotate the token id
           * @param tokenId ID of token to get uri for
           */
          function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
              if (customRendererConfig.renderer != address(0)) {
                  return IHLRenderer(customRendererConfig.renderer).tokenURI(tokenId);
              }
              return ERC721AURIStorageUpgradeable.tokenURI(tokenId);
          }
          /**
           * @notice See {IERC165-supportsInterface}.
           */
          function supportsInterface(
              bytes4 interfaceId
          ) public view virtual override(IERC165Upgradeable, ERC721AUpgradeable) returns (bool) {
              return ERC721AUpgradeable.supportsInterface(interfaceId);
          }
          /**
           * @notice Hook called after transfers
           * @param from Account token is being transferred from
           * @param to Account token is being transferred to
           * @param tokenId ID of token being transferred
           */
          function _afterTokenTransfers(address from, address to, uint256 tokenId) internal override {
              address _manager = tokenManager(tokenId);
              if (_manager != address(0) && IERC165Upgradeable(_manager).supportsInterface(type(IPostTransfer).interfaceId)) {
                  IPostTransfer(_manager).postSafeTransferFrom(_msgSender(), from, to, tokenId, "");
              }
              observability.emitTransfer(from, to, tokenId);
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgSender() internal view virtual override(ERC721Base, ContextUpgradeable) returns (address sender) {
              return ERC2771ContextUpgradeable._msgSender();
          }
          /**
           * @notice Used for meta-transactions
           */
          function _msgData() internal view virtual override(ERC721Base, ContextUpgradeable) returns (bytes calldata) {
              return ERC2771ContextUpgradeable._msgData();
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure virtual override(ERC721AUpgradeable, ERC721Base) {
              ERC721AUpgradeable._revert(errorSelector);
          }
          /**
           * @notice Override base URI system for select tokens, with custom per-token metadata
           * @param tokenId Token to set uri for
           * @param _uri Uri to set on token
           */
          function _setTokenURI(uint256 tokenId, string calldata _uri) private {
              address _manager = tokenManager(tokenId);
              address msgSender = _msgSender();
              address tempOwner = owner();
              if (_manager == address(0)) {
                  if (msgSender != tempOwner) {
                      _revert(Unauthorized.selector);
                  }
              } else {
                  if (!ITokenManager(_manager).canUpdateMetadata(msgSender, tokenId, bytes(_uri))) {
                      _revert(Unauthorized.selector);
                  }
              }
              _tokenURIs[tokenId] = _uri;
          }
          /**
           * @notice Require the new supply of tokens after mint to be less than limit supply
           * @param newSupply New supply
           */
          function _requireLimitSupply(uint256 newSupply) internal view {
              uint256 _limitSupply = limitSupply;
              if (_limitSupply != 0 && newSupply > _limitSupply) {
                  _revert(OverLimitSupply.selector);
              }
          }
      }
      //SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @notice Highlight's custom renderer interface for collections
       */
      interface IHLRenderer {
          /**
           * @notice Process a mint to multiple recipients (likely store mint details)
           * @dev Implementations should assume msg.sender to be the NFT contract
           * @param firstTokenId ID of first token to be minted (next ones are minted sequentially)
           * @param numTokensPerRecipient Number of tokens minted to each recipient
           * @param orderedRecipients Recipients to mint tokens to, sequentially
           */
          function processMultipleRecipientMint(
              uint256 firstTokenId,
              uint256 numTokensPerRecipient,
              address[] calldata orderedRecipients
          ) external;
          /**
           * @notice Process a mint to one recipient (likely store mint details)
           * @dev Implementations should assume msg.sender to be the NFT contract
           * @param firstTokenId ID of first token to be minted (next ones are minted sequentially)
           * @param numTokens Number of tokens minted
           * @param recipient Recipient to mint to
           */
          function processOneRecipientMint(uint256 firstTokenId, uint256 numTokens, address recipient) external;
          /**
           * @notice Return token metadata for a token
           * @dev Implementations should assume msg.sender to be the NFT contract
           * @param tokenId ID of token to return metadata for
           */
          function tokenURI(uint256 tokenId) external view returns (string memory);
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @notice General721 mint interface
       * @author highlight.xyz
       */
      interface IERC721GeneralMint {
          /**
           * @notice Mint one token to one recipient
           * @param recipient Recipient of minted NFT
           */
          function mintOneToOneRecipient(address recipient) external returns (uint256);
          /**
           * @notice Mint an amount of tokens to one recipient
           * @param recipient Recipient of minted NFTs
           * @param amount Amount of NFTs minted
           */
          function mintAmountToOneRecipient(address recipient, uint256 amount) external;
          /**
           * @notice Mint one token to multiple recipients. Useful for use-cases like airdrops
           * @param recipients Recipients of minted NFTs
           */
          function mintOneToMultipleRecipients(address[] calldata recipients) external;
          /**
           * @notice Mint the same amount of tokens to multiple recipients
           * @param recipients Recipients of minted NFTs
           * @param amount Amount of NFTs minted to each recipient
           */
          function mintSameAmountToMultipleRecipients(address[] calldata recipients, uint256 amount) external;
          /**
           * @notice Mint a chosen token id to a single recipient
           * @param recipient Recipient of chosen NFT
           * @param tokenId ID of NFT to mint
           */
          function mintSpecificTokenToOneRecipient(address recipient, uint256 tokenId) external;
          /**
           * @notice Mint chosen token ids to a single recipient
           * @param recipient Recipient of chosen NFT
           * @param tokenIds IDs of NFTs to mint
           */
          function mintSpecificTokensToOneRecipient(address recipient, uint256[] calldata tokenIds) external;
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @notice General721 mint interface for sequentially minted collections
       * @author highlight.xyz
       */
      interface IERC721GeneralSequenceMint {
          /**
           * @notice Mint one token to one recipient
           * @param recipient Recipient of minted NFT
           */
          function mintOneToOneRecipient(address recipient) external returns (uint256);
          /**
           * @notice Mint an amount of tokens to one recipient
           * @param recipient Recipient of minted NFTs
           * @param amount Amount of NFTs minted
           */
          function mintAmountToOneRecipient(address recipient, uint256 amount) external;
          /**
           * @notice Mint one token to multiple recipients. Useful for use-cases like airdrops
           * @param recipients Recipients of minted NFTs
           */
          function mintOneToMultipleRecipients(address[] calldata recipients) external;
          /**
           * @notice Mint the same amount of tokens to multiple recipients
           * @param recipients Recipients of minted NFTs
           * @param amount Amount of NFTs minted to each recipient
           */
          function mintSameAmountToMultipleRecipients(address[] calldata recipients, uint256 amount) external;
      }
      //SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @notice From MathCastles deployment
       */
      library Bytecode {
          error InvalidCodeAtRange(uint256 _size, uint256 _start, uint256 _end);
          /**
          @notice Generate a creation code that results on a contract with `_code` as bytecode
          @param _code The returning value of the resulting `creationCode`
          @return creationCode (constructor) for new contract
        */
          function creationCodeFor(bytes memory _code) internal pure returns (bytes memory) {
              /*
            0x00    0x63         0x63XXXXXX  PUSH4 _code.length  size
            0x01    0x80         0x80        DUP1                size size
            0x02    0x60         0x600e      PUSH1 14            14 size size
            0x03    0x60         0x6000      PUSH1 00            0 14 size size
            0x04    0x39         0x39        CODECOPY            size
            0x05    0x60         0x6000      PUSH1 00            0 size
            0x06    0xf3         0xf3        RETURN
            <CODE>
          */
              return abi.encodePacked(hex"63", uint32(_code.length), hex"80_60_0E_60_00_39_60_00_F3", _code);
          }
          /**
          @notice Returns the size of the code on a given address
          @param _addr Address that may or may not contain code
          @return size of the code on the given `_addr`
        */
          function codeSize(address _addr) internal view returns (uint256 size) {
              assembly {
                  size := extcodesize(_addr)
              }
          }
          /**
          @notice Returns the code of a given address
          @dev It will fail if `_end < _start`
          @param _addr Address that may or may not contain code
          @param _start number of bytes of code to skip on read
          @param _end index before which to end extraction
          @return oCode read from `_addr` deployed bytecode
          Forked from: https://gist.github.com/KardanovIR/fe98661df9338c842b4a30306d507fbd
        */
          function codeAt(address _addr, uint256 _start, uint256 _end) internal view returns (bytes memory oCode) {
              uint256 csize = codeSize(_addr);
              if (csize == 0) return bytes("");
              if (_start > csize) return bytes("");
              if (_end < _start) revert InvalidCodeAtRange(csize, _start, _end);
              unchecked {
                  uint256 reqSize = _end - _start;
                  uint256 maxSize = csize - _start;
                  uint256 size = maxSize < reqSize ? maxSize : reqSize;
                  assembly {
                      // allocate output byte array - this could also be done without assembly
                      // by using o_code = new bytes(size)
                      oCode := mload(0x40)
                      // new "memory end" including padding
                      mstore(0x40, add(oCode, and(add(add(size, 0x20), 0x1f), not(0x1f))))
                      // store length in memory
                      mstore(oCode, size)
                      // actually retrieve the code, this needs assembly
                      extcodecopy(_addr, add(oCode, 0x20), _start, size)
                  }
              }
          }
      }
      //SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "./Bytecode.sol";
      import { OwnableUpgradeable } from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
      /**
       * @title Onchain File Storage
       * @notice Introduces file handling to place utilities onchain
       * @author highlight.xyz
       */
      abstract contract OnchainFileStorage is OwnableUpgradeable {
          /**
           * @notice File existence errors
           */
          error FileAlreadyRegistered();
          error FileNotRegistered();
          /**
           * @notice File storage
           * @dev File-scoped bytecode addresses (pointers) holding contents
           */
          mapping(bytes => address[]) private _fileStorage;
          /**
           * @notice File storage path names
           * @dev Store registered file names (all will be present as keys in `fileStorage`)
           */
          bytes[] private _files;
          /**
           * @notice Add a file via its name and associated storage bytecode addresses
           */
          function addFile(string calldata fileName, address[] calldata fileStorageAddresses) external onlyOwner {
              bytes memory _fileName = bytes(fileName);
              if (_fileStorage[_fileName].length != 0) {
                  _revert(FileAlreadyRegistered.selector);
              }
              _files.push(_fileName);
              _fileStorage[_fileName] = fileStorageAddresses;
          }
          /**
           * @notice Remove a file from registered list of file names, and its associated storage bytecode addresses
           */
          function removeFile(string calldata fileName) external onlyOwner {
              bytes memory _fileName = bytes(fileName);
              if (_fileStorage[_fileName].length == 0) {
                  _revert(FileNotRegistered.selector);
              }
              bytes[] memory oldFiles = _files;
              bytes[] memory newFiles = new bytes[](oldFiles.length - 1);
              uint256 fileIndexOffset = 0;
              uint256 oldFilesLength = oldFiles.length;
              for (uint256 i = 0; i < oldFilesLength; i++) {
                  if (keccak256(oldFiles[i]) == keccak256(_fileName)) {
                      fileIndexOffset = 1;
                  } else {
                      newFiles[i - fileIndexOffset] = oldFiles[i];
                  }
              }
              _files = newFiles;
              delete _fileStorage[_fileName];
          }
          /**
           * @notice Return registered file names
           */
          function files() external view returns (string[] memory) {
              bytes[] memory fileNames = _files;
              string[] memory fileNamesHumanReadable = new string[](fileNames.length);
              for (uint256 i = 0; i < fileNames.length; i++) {
                  fileNamesHumanReadable[i] = string(fileNames[i]);
              }
              return fileNamesHumanReadable;
          }
          /**
           * @notice Return storage bytecode addresses for a file
           */
          function fileStorage(string calldata fileName) external view returns (address[] memory) {
              bytes memory _fileName = bytes(fileName);
              if (_fileStorage[_fileName].length == 0) {
                  _revert(FileNotRegistered.selector);
              }
              return _fileStorage[bytes(fileName)];
          }
          /**
           * @notice Return file contents
           */
          function fileContents(string calldata fileName) external view returns (string memory) {
              bytes memory _fileName = bytes(fileName);
              if (_fileStorage[_fileName].length == 0) {
                  _revert(FileNotRegistered.selector);
              }
              address[] memory fileStorageAddresses = _fileStorage[bytes(fileName)];
              uint256 fileStorageAddressesLength = fileStorageAddresses.length;
              string memory contents = "";
              // @author of the following section: @xaltgeist (0x16cc845d144a283d1b0687fbac8b0601cc47a6c3 on Ethereum mainnet)
              // edited with HL FS -like variable names
              uint256 size;
              uint ptr = 0x20;
              address currentChunk;
              unchecked {
                  // solhint-disable-next-line no-inline-assembly
                  assembly {
                      contents := mload(0x40)
                  }
                  for (uint i = 0; i < fileStorageAddressesLength; i++) {
                      currentChunk = fileStorageAddresses[i];
                      size = Bytecode.codeSize(currentChunk) - 1;
                      // solhint-disable-next-line no-inline-assembly
                      assembly {
                          extcodecopy(currentChunk, add(contents, ptr), 1, size)
                      }
                      ptr += size;
                  }
                  // solhint-disable-next-line no-inline-assembly
                  assembly {
                      // allocate output byte array - this could also be done without assembly
                      // by using o_code = new bytes(size)
                      // new "memory end" including padding
                      mstore(0x40, add(contents, and(add(ptr, 0x1f), not(0x1f))))
                      // store length in memory
                      mstore(contents, sub(ptr, 0x20))
                  }
              }
              return contents;
          }
          /**
           * @dev For more efficient reverts.
           */
          function _revert(bytes4 errorSelector) internal pure virtual {
              assembly {
                  mstore(0x00, errorSelector)
                  revert(0x00, 0x04)
              }
          }
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @dev Utilities for metadata encryption and decryption
       * @author highlight.xyz
       */
      abstract contract MetadataEncryption {
          /// @dev See: https://ethereum.stackexchange.com/questions/69825/decrypt-message-on-chain
          function encryptDecrypt(bytes memory data, bytes calldata key) public pure returns (bytes memory result) {
              // Store data length on stack for later use
              uint256 length = data.length;
              // solhint-disable-next-line no-inline-assembly
              assembly {
                  // Set result to free memory pointer
                  result := mload(0x40)
                  // Increase free memory pointer by lenght + 32
                  mstore(0x40, add(add(result, length), 32))
                  // Set result length
                  mstore(result, length)
              }
              // Iterate over the data stepping by 32 bytes
              for (uint256 i = 0; i < length; i += 32) {
                  // Generate hash of the key and offset
                  bytes32 hash = keccak256(abi.encodePacked(key, i));
                  bytes32 chunk;
                  // solhint-disable-next-line no-inline-assembly
                  assembly {
                      // Read 32-bytes data chunk
                      chunk := mload(add(data, add(i, 32)))
                  }
                  // XOR the chunk with hash
                  chunk ^= hash;
                  // solhint-disable-next-line no-inline-assembly
                  assembly {
                      // Write 32-byte encrypted chunk
                      mstore(add(result, add(i, 32)), chunk)
                  }
              }
          }
          function _sliceUint(bytes memory bs, uint256 start) internal pure returns (uint256) {
              require(bs.length >= start + 32, "slicing out of range");
              uint256 x;
              assembly {
                  x := mload(add(bs, add(0x20, start)))
              }
              return x;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.5.0) (metatx/ERC2771Context.sol)
      pragma solidity 0.8.10;
      import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
      /**
       * @dev Context variant with ERC2771 support.
       *      Openzeppelin contract slightly modified by ishan@ highlight.xyz to be upgradeable.
       */
      abstract contract ERC2771ContextUpgradeable is Initializable {
          address private _trustedForwarder;
          /**
           * @dev This empty reserved space is put in place to allow future versions to add new
           * variables without shifting down storage in the inheritance chain.
           * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
           */
          uint256[49] private __gap;
          function isTrustedForwarder(address forwarder) public view virtual returns (bool) {
              return forwarder == _trustedForwarder;
          }
          function __ERC2771ContextUpgradeable__init__(address trustedForwarder) internal onlyInitializing {
              _trustedForwarder = trustedForwarder;
          }
          function _msgSender() internal view virtual returns (address sender) {
              if (isTrustedForwarder(msg.sender)) {
                  // The assembly code is more direct than the Solidity version using `abi.decode`.
                  /* solhint-disable no-inline-assembly */
                  assembly {
                      sender := shr(96, calldataload(sub(calldatasize(), 20)))
                  }
                  /* solhint-enable no-inline-assembly */
              } else {
                  return msg.sender;
              }
          }
          function _msgData() internal view virtual returns (bytes calldata) {
              if (isTrustedForwarder(msg.sender)) {
                  return msg.data[:msg.data.length - 20];
              } else {
                  return msg.data;
              }
          }
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      import "../royaltyManager/interfaces/IRoyaltyManager.sol";
      /**
       * @title IObservability
       * @author highlight.xyz
       * @notice Interface to interact with the Highlight observability singleton
       * @dev Singleton to coalesce select Highlight protocol events
       */
      interface IObservability {
          /**************************
            ERC721Base / ERC721MinimizedBase events
           **************************/
          /**
           * @notice Emitted when minter is registered or unregistered
           * @param contractAddress Initial contract that emitted event
           * @param minter Minter that was changed
           * @param registered True if the minter was registered, false if unregistered
           */
          event MinterRegistrationChanged(address indexed contractAddress, address indexed minter, bool indexed registered);
          /**
           * @notice Emitted when token managers are set for token/edition ids
           * @param contractAddress Initial contract that emitted event
           * @param _ids Edition / token ids
           * @param _tokenManagers Token managers to set for tokens / editions
           */
          event GranularTokenManagersSet(address indexed contractAddress, uint256[] _ids, address[] _tokenManagers);
          /**
           * @notice Emitted when token managers are removed for token/edition ids
           * @param contractAddress Initial contract that emitted event
           * @param _ids Edition / token ids to remove token managers for
           */
          event GranularTokenManagersRemoved(address indexed contractAddress, uint256[] _ids);
          /**
           * @notice Emitted when default token manager changed
           * @param contractAddress Initial contract that emitted event
           * @param newDefaultTokenManager New default token manager. Zero address if old one was removed
           */
          event DefaultTokenManagerChanged(address indexed contractAddress, address indexed newDefaultTokenManager);
          /**
           * @notice Emitted when default royalty is set
           * @param contractAddress Initial contract that emitted event
           * @param recipientAddress Royalty recipient
           * @param royaltyPercentageBPS Percentage of sale (in basis points) owed to royalty recipient
           */
          event DefaultRoyaltySet(
              address indexed contractAddress,
              address indexed recipientAddress,
              uint16 indexed royaltyPercentageBPS
          );
          /**
           * @notice Emitted when royalties are set for edition / token ids
           * @param contractAddress Initial contract that emitted event
           * @param ids Token / edition ids
           * @param _newRoyalties New royalties for each token / edition
           */
          event GranularRoyaltiesSet(address indexed contractAddress, uint256[] ids, IRoyaltyManager.Royalty[] _newRoyalties);
          /**
           * @notice Emitted when royalty manager is updated
           * @param contractAddress Initial contract that emitted event
           * @param newRoyaltyManager New royalty manager. Zero address if old one was removed
           */
          event RoyaltyManagerChanged(address indexed contractAddress, address indexed newRoyaltyManager);
          /**
           * @notice Emitted when mints are frozen permanently
           * @param contractAddress Initial contract that emitted event
           */
          event MintsFrozen(address indexed contractAddress);
          /**
           * @notice Emitted when contract metadata is set
           * @param contractAddress Initial contract that emitted event
           * @param name New name
           * @param symbol New symbol
           * @param contractURI New contract uri
           */
          event ContractMetadataSet(address indexed contractAddress, string name, string symbol, string contractURI);
          /**************************
            ERC721General events
           **************************/
          /**
           * @notice Emitted when hashed metadata config is set
           * @param contractAddress Initial contract that emitted event
           * @param hashedURIData Hashed uri data
           * @param hashedRotationData Hashed rotation key
           * @param _supply Supply of tokens to mint w/ reveal
           */
          event HashedMetadataConfigSet(
              address indexed contractAddress,
              bytes hashedURIData,
              bytes hashedRotationData,
              uint256 indexed _supply
          );
          /**
           * @notice Emitted when metadata is revealed
           * @param contractAddress Initial contract that emitted event
           * @param key Key used to decode hashed data
           * @param newRotationKey Actual rotation key to be used
           */
          event Revealed(address indexed contractAddress, bytes key, uint256 newRotationKey);
          /**************************
            ERC721GeneralBase events
           **************************/
          /**
           * @notice Emitted when uris are set for tokens
           * @param contractAddress Initial contract that emitted event
           * @param ids IDs of tokens to set uris for
           * @param uris Uris to set on tokens
           */
          event TokenURIsSet(address indexed contractAddress, uint256[] ids, string[] uris);
          /**
           * @notice Emitted when limit supply is set
           * @param contractAddress Initial contract that emitted event
           * @param newLimitSupply Limit supply to set
           */
          event LimitSupplySet(address indexed contractAddress, uint256 indexed newLimitSupply);
          /**************************
            ERC721StorageUri events
           **************************/
          /**
           * @notice Emits when a series collection has its base uri set
           * @param contractAddress Contract with updated base uri
           * @param newBaseUri New base uri
           */
          event BaseUriSet(address indexed contractAddress, string newBaseUri);
          /**************************
            ERC721Editions / ERC721SingleEdition events
           **************************/
          // Not adding EditionCreated, EditionMintedToOneRecipient, EditionMintedToRecipients
          // EditionCreated - handled by MetadataInitialized
          // EditionMintedToOneRecipient / EditionMintedToRecipients - handled via mint module events
          /**************************
            Deployment events
           **************************/
          /**
           * @notice Emitted when Generative Series contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event GenerativeSeriesDeployed(address indexed deployer, address indexed contractAddress);
          /**
           * @notice Emitted when Series contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event SeriesDeployed(address indexed deployer, address indexed contractAddress);
          /**
           * @notice Emitted when MultipleEditions contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event MultipleEditionsDeployed(address indexed deployer, address indexed contractAddress);
          /**
           * @notice Emitted when SingleEdition contract is deployed
           * @param deployer Contract deployer
           * @param contractAddress Address of contract that was deployed
           */
          event SingleEditionDeployed(address indexed deployer, address indexed contractAddress);
          /**************************
            ERC721 events
           **************************/
          /**
           * @notice Emitted when `tokenId` token is transferred from `from` to `to` on contractAddress
           * @param contractAddress NFT contract token resides on
           * @param from Token sender
           * @param to Token receiver
           * @param tokenId Token being sent
           */
          event Transfer(address indexed contractAddress, address indexed from, address to, uint256 indexed tokenId);
          /**
           * @notice Emit MinterRegistrationChanged
           */
          function emitMinterRegistrationChanged(address minter, bool registered) external;
          /**
           * @notice Emit GranularTokenManagersSet
           */
          function emitGranularTokenManagersSet(uint256[] calldata _ids, address[] calldata _tokenManagers) external;
          /**
           * @notice Emit GranularTokenManagersRemoved
           */
          function emitGranularTokenManagersRemoved(uint256[] calldata _ids) external;
          /**
           * @notice Emit DefaultTokenManagerChanged
           */
          function emitDefaultTokenManagerChanged(address newDefaultTokenManager) external;
          /**
           * @notice Emit DefaultRoyaltySet
           */
          function emitDefaultRoyaltySet(address recipientAddress, uint16 royaltyPercentageBPS) external;
          /**
           * @notice Emit GranularRoyaltiesSet
           */
          function emitGranularRoyaltiesSet(
              uint256[] calldata ids,
              IRoyaltyManager.Royalty[] calldata _newRoyalties
          ) external;
          /**
           * @notice Emit RoyaltyManagerChanged
           */
          function emitRoyaltyManagerChanged(address newRoyaltyManager) external;
          /**
           * @notice Emit MintsFrozen
           */
          function emitMintsFrozen() external;
          /**
           * @notice Emit ContractMetadataSet
           */
          function emitContractMetadataSet(
              string calldata name,
              string calldata symbol,
              string calldata contractURI
          ) external;
          /**
           * @notice Emit HashedMetadataConfigSet
           */
          function emitHashedMetadataConfigSet(
              bytes calldata hashedURIData,
              bytes calldata hashedRotationData,
              uint256 _supply
          ) external;
          /**
           * @notice Emit Revealed
           */
          function emitRevealed(bytes calldata key, uint256 newRotationKey) external;
          /**
           * @notice Emit TokenURIsSet
           */
          function emitTokenURIsSet(uint256[] calldata ids, string[] calldata uris) external;
          /**
           * @notice Emit LimitSupplySet
           */
          function emitLimitSupplySet(uint256 newLimitSupply) external;
          /**
           * @notice Emit BaseUriSet
           */
          function emitBaseUriSet(string calldata newBaseUri) external;
          /**
           * @notice Emit GenerativeSeriesDeployed
           */
          function emitGenerativeSeriesDeployed(address contractAddress) external;
          /**
           * @notice Emit SeriesDeployed
           */
          function emitSeriesDeployed(address contractAddress) external;
          /**
           * @notice Emit MultipleEditionsDeployed
           */
          function emitMultipleEditionsDeployed(address contractAddress) external;
          /**
           * @notice Emit SingleEditionDeployed
           */
          function emitSingleEditionDeployed(address contractAddress) external;
          /**
           * @notice Emit Transfer
           */
          function emitTransfer(address from, address to, uint256 tokenId) external;
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @title IRoyaltyManager
       * @author highlight.xyz
       * @notice Enables interfacing with custom royalty managers that define conditions on setting royalties for
       *         NFT contracts
       */
      interface IRoyaltyManager {
          /**
           * @notice Struct containing values required to adhere to ERC-2981
           * @param recipientAddress Royalty recipient - can be EOA, royalty splitter contract, etc.
           * @param royaltyPercentageBPS Royalty cut, in basis points
           */
          struct Royalty {
              address recipientAddress;
              uint16 royaltyPercentageBPS;
          }
          /**
           * @notice Defines conditions around being able to swap royalty manager for another one
           * @param newRoyaltyManager New royalty manager being swapped in
           * @param sender msg sender
           */
          function canSwap(address newRoyaltyManager, address sender) external view returns (bool);
          /**
           * @notice Defines conditions around being able to remove current royalty manager
           * @param sender msg sender
           */
          function canRemoveItself(address sender) external view returns (bool);
          /**
           * @notice Defines conditions around being able to set granular royalty (per token or per edition)
           * @param id Edition / token ID whose royalty is being set
           * @param royalty Royalty being set
           * @param sender msg sender
           */
          function canSetGranularRoyalty(uint256 id, Royalty calldata royalty, address sender) external view returns (bool);
          /**
           * @notice Defines conditions around being able to set default royalty
           * @param royalty Royalty being set
           * @param sender msg sender
           */
          function canSetDefaultRoyalty(Royalty calldata royalty, address sender) external view returns (bool);
      }
      // SPDX-License-Identifier: MIT
      pragma solidity 0.8.10;
      /**
       * @author highlight.xyz
       * @notice If token managers implement this, transfer actions will call
       *      postBurn on the token manager.
       */
      interface IPostBurn {
          /**
           * @notice Hook called by contract after burn, if token manager of burned token implements this
           *      interface.
           * @param operator Operator burning tokens
           * @param sender Msg sender
           * @param id Burned token's id or id of edition of token that is burned
           */
          function postBurn(address operator, address sender, uint256 id) external;
      }
      // SPDX-License-Identifier: MIT
      pragma solidity 0.8.10;
      /**
       * @author highlight.xyz
       * @notice If token managers implement this, transfer actions will call
       *      postSafeTransferFrom or postTransferFrom on the token manager.
       */
      interface IPostTransfer {
          /**
           * @notice Hook called by community after safe transfers, if token manager of transferred token implements this
           *      interface.
           * @param operator Operator transferring tokens
           * @param from Token(s) sender
           * @param to Token(s) recipient
           * @param id Transferred token's id
           * @param data Arbitrary data
           */
          function postSafeTransferFrom(address operator, address from, address to, uint256 id, bytes memory data) external;
          /**
           * @notice Hook called by community after transfers, if token manager of transferred token implements
           *         this interface.
           * @param operator Operator transferring tokens
           * @param from Token(s) sender
           * @param to Token(s) recipient
           * @param id Transferred token's id
           */
          function postTransferFrom(address operator, address from, address to, uint256 id) external;
      }
      // SPDX-License-Identifier: UNLICENSED
      pragma solidity 0.8.10;
      /**
       * @title ITokenManager
       * @author highlight.xyz
       * @notice Enables interfacing with custom token managers
       */
      interface ITokenManager {
          /**
           * @notice Returns whether metadata updater is allowed to update
           * @param sender Updater
           * @param id Token/edition who's uri is being updated
           *           If id is 0, implementation should decide behaviour for base uri update
           * @param newData Token's new uri if called by general contract, and any metadata field if called by editions
           * @return If invocation can update metadata
           */
          function canUpdateMetadata(address sender, uint256 id, bytes calldata newData) external returns (bool);
          /**
           * @notice Returns whether token manager can be swapped for another one by invocator
           * @notice Default token manager implementations should ignore id
           * @param sender Swapper
           * @param id Token grouping id (token id or edition id)
           * @param newTokenManager New token manager being swapped to
           * @return If invocation can swap token managers
           */
          function canSwap(address sender, uint256 id, address newTokenManager) external returns (bool);
          /**
           * @notice Returns whether token manager can be removed
           * @notice Default token manager implementations should ignore id
           * @param sender Swapper
           * @param id Token grouping id (token id or edition id)
           * @return If invocation can remove token manager
           */
          function canRemoveItself(address sender, uint256 id) external returns (bool);
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165Checker.sol)
      pragma solidity 0.8.10;
      import "./IERC165Upgradeable.sol";
      /**
       * @dev Library used to query support of an interface declared via {IERC165}.
       *
       * Note that these functions return the actual result of the query: they do not
       * `revert` if an interface is not supported. It is up to the caller to decide
       * what to do in these cases.
       */
      /* solhint-disable */
      library ERC165CheckerUpgradeable {
          // As per the EIP-165 spec, no interface should ever match 0xffffffff
          bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;
          /**
           * @dev Returns true if `account` supports the {IERC165} interface,
           */
          function supportsERC165(address account) internal view returns (bool) {
              // Any contract that implements ERC165 must explicitly indicate support of
              // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid
              return
                  supportsERC165InterfaceUnchecked(account, type(IERC165Upgradeable).interfaceId) &&
                  !supportsERC165InterfaceUnchecked(account, _INTERFACE_ID_INVALID);
          }
          /**
           * @dev Returns true if `account` supports the interface defined by
           * `interfaceId`. Support for {IERC165} itself is queried automatically.
           *
           * See {IERC165-supportsInterface}.
           */
          function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) {
              // query support of both ERC165 as per the spec and support of _interfaceId
              return supportsERC165(account) && supportsERC165InterfaceUnchecked(account, interfaceId);
          }
          /**
           * @dev Returns a boolean array where each value corresponds to the
           * interfaces passed in and whether they're supported or not. This allows
           * you to batch check interfaces for a contract where your expectation
           * is that some interfaces may not be supported.
           *
           * See {IERC165-supportsInterface}.
           *
           * _Available since v3.4._
           */
          function getSupportedInterfaces(
              address account,
              bytes4[] memory interfaceIds
          ) internal view returns (bool[] memory) {
              // an array of booleans corresponding to interfaceIds and whether they're supported or not
              bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);
              // query support of ERC165 itself
              if (supportsERC165(account)) {
                  // query support of each interface in interfaceIds
                  for (uint256 i = 0; i < interfaceIds.length; i++) {
                      interfaceIdsSupported[i] = supportsERC165InterfaceUnchecked(account, interfaceIds[i]);
                  }
              }
              return interfaceIdsSupported;
          }
          /**
           * @dev Returns true if `account` supports all the interfaces defined in
           * `interfaceIds`. Support for {IERC165} itself is queried automatically.
           *
           * Batch-querying can lead to gas savings by skipping repeated checks for
           * {IERC165} support.
           *
           * See {IERC165-supportsInterface}.
           */
          function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) {
              // query support of ERC165 itself
              if (!supportsERC165(account)) {
                  return false;
              }
              // query support of each interface in _interfaceIds
              for (uint256 i = 0; i < interfaceIds.length; i++) {
                  if (!supportsERC165InterfaceUnchecked(account, interfaceIds[i])) {
                      return false;
                  }
              }
              // all interfaces supported
              return true;
          }
          /**
           * @notice Query if a contract implements an interface, does not check ERC165 support
           * @param account The address of the contract to query for support of an interface
           * @param interfaceId The interface identifier, as specified in ERC-165
           * @return true if the contract at account indicates support of the interface with
           * identifier interfaceId, false otherwise
           * @dev Assumes that account contains a contract that supports ERC165, otherwise
           * the behavior of this method is undefined. This precondition can be checked
           * with {supportsERC165}.
           * Interface identification is specified in ERC-165.
           */
          function supportsERC165InterfaceUnchecked(address account, bytes4 interfaceId) internal view returns (bool) {
              // prepare call
              bytes memory encodedParams = abi.encodeWithSelector(IERC165Upgradeable.supportsInterface.selector, interfaceId);
              // perform static call
              bool success;
              uint256 returnSize;
              uint256 returnValue;
              assembly {
                  success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20)
                  returnSize := returndatasize()
                  returnValue := mload(0x00)
              }
              return success && returnSize >= 0x20 && returnValue > 0;
          }
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
      pragma solidity 0.8.10;
      /**
       * @dev Interface of the ERC165 standard, as defined in the
       * https://eips.ethereum.org/EIPS/eip-165[EIP].
       *
       * Implementers can declare support of contract interfaces, which can then be
       * queried by others ({ERC165Checker}).
       *
       * For an implementation, see {ERC165}.
       */
      /* solhint-disable */
      interface IERC165Upgradeable {
          /**
           * @dev Returns true if this contract implements the interface defined by
           * `interfaceId`. See the corresponding
           * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
           * to learn more about how these ids are created.
           *
           * This function call must use less than 30 000 gas.
           */
          function supportsInterface(bytes4 interfaceId) external view returns (bool);
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981Upgradeable.sol)
      pragma solidity 0.8.10;
      import "../ERC165/IERC165Upgradeable.sol";
      /**
       * @dev Interface for the NFT Royalty Standard.
       *
       * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
       * support for royalty payments across all NFT marketplaces and ecosystem participants.
       *
       * _Available since v4.5._
       */
      interface IERC2981Upgradeable is IERC165Upgradeable {
          /**
           * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
           * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
           */
          function royaltyInfo(
              uint256 tokenId,
              uint256 salePrice
          ) external view returns (address receiver, uint256 royaltyAmount);
      }
      // SPDX-License-Identifier: MIT
      // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
      pragma solidity 0.8.10;
      import "@openzeppelin/contracts/utils/Context.sol";
      /**
       * @dev Contract module which provides a basic access control mechanism, where
       * there is an account (an owner) that can be granted exclusive access to
       * specific functions.
       *
       * By default, the owner account will be the one that deploys the contract. This
       * can later be changed with {transferOwnership}.
       *
       * This module is used through inheritance. It will make available the modifier
       * `onlyOwner`, which can be applied to your functions to restrict their use to
       * the owner.
       */
      /* solhint-disable */
      abstract contract Ownable is Context {
          address private _owner;
          event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
          /**
           * @dev Initializes the contract setting the deployer as the initial owner.
           */
          constructor() {
              _transferOwnership(_msgSender());
          }
          /**
           * @dev Throws if called by any account other than the owner.
           */
          modifier onlyOwner() {
              _checkOwner();
              _;
          }
          /**
           * @dev Returns the address of the current owner.
           */
          function owner() public view virtual returns (address) {
              return _owner;
          }
          /**
           * @dev Throws if the sender is not the owner.
           */
          function _checkOwner() internal view virtual {
              require(owner() == _msgSender(), "Ownable: caller is not the owner");
          }
          /**
           * @dev Leaves the contract without owner. It will not be possible to call
           * `onlyOwner` functions anymore. Can only be called by the current owner.
           *
           * NOTE: Renouncing ownership will leave the contract without an owner,
           * thereby removing any functionality that is only available to the owner.
           */
          function renounceOwnership() public virtual onlyOwner {
              _transferOwnership(address(0));
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Can only be called by the current owner.
           */
          function transferOwnership(address newOwner) public virtual onlyOwner {
              require(newOwner != address(0), "Ownable: new owner is the zero address");
              _transferOwnership(newOwner);
          }
          /**
           * @dev Transfers ownership of the contract to a new account (`newOwner`).
           * Internal function without access restriction.
           */
          function _transferOwnership(address newOwner) internal virtual {
              address oldOwner = _owner;
              _owner = newOwner;
              emit OwnershipTransferred(oldOwner, newOwner);
          }
      }