ETH Price: $2,471.73 (+8.57%)

Transaction Decoder

Block:
20576528 at Aug-21-2024 10:53:59 AM +UTC
Transaction Fee:
0.000053137158824775 ETH $0.13
Gas Used:
54,435 Gas / 0.976157965 Gwei

Emitted Events:

232 BeaconProxy.0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925( 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925, 0x0000000000000000000000005d5076aa6546a4f61c2cf8568a2a26055fcf0910, 0x00000000000000000000000019b5cc75846bf6286d599ec116536a333c4c2c14, 00000000000000000000000000000000000000000000000000062f7c1ed52800 )

Account State Difference:

  Address   Before After State Difference Code
0x5d5076AA...55fCF0910
0.026667366755781957 Eth
Nonce: 66
0.026614229596957182 Eth
Nonce: 67
0.000053137158824775
(beaverbuild)
16.769881257719383336 Eth16.769889113482783546 Eth0.00000785576340021
0xd9D920AA...31D159DEf

Execution Trace

BeaconProxy.095ea7b3( )
  • UpgradeableBeacon.STATICCALL( )
  • SolvBTCYieldToken.approve( spender=0x19b5cc75846BF6286d599ec116536a333C4C2c14, value=1741060000000000 ) => ( True )
    File 1 of 3: BeaconProxy
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/BeaconProxy.sol)
    
    pragma solidity ^0.8.20;
    
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)
    
    /**
     * @dev This is the interface that {BeaconProxy} expects of its beacon.
     */
    interface IBeacon {
        /**
         * @dev Must return an address that can be used as a delegate call target.
         *
         * {UpgradeableBeacon} will check that this address is a contract.
         */
        function implementation() external view returns (address);
    }
    
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/Proxy.sol)
    
    /**
     * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
     * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
     * be specified by overriding the virtual {_implementation} function.
     *
     * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
     * different contract through the {_delegate} function.
     *
     * The success and return data of the delegated call will be returned back to the caller of the proxy.
     */
    abstract contract Proxy {
        /**
         * @dev Delegates the current call to `implementation`.
         *
         * This function does not return to its internal call site, it will return directly to the external caller.
         */
        function _delegate(address implementation) internal virtual {
            assembly {
                // Copy msg.data. We take full control of memory in this inline assembly
                // block because it will not return to Solidity code. We overwrite the
                // Solidity scratch pad at memory position 0.
                calldatacopy(0, 0, calldatasize())
    
                // Call the implementation.
                // out and outsize are 0 because we don't know the size yet.
                let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
    
                // Copy the returned data.
                returndatacopy(0, 0, returndatasize())
    
                switch result
                // delegatecall returns 0 on error.
                case 0 {
                    revert(0, returndatasize())
                }
                default {
                    return(0, returndatasize())
                }
            }
        }
    
        /**
         * @dev This is a virtual function that should be overridden so it returns the address to which the fallback
         * function and {_fallback} should delegate.
         */
        function _implementation() internal view virtual returns (address);
    
        /**
         * @dev Delegates the current call to the address returned by `_implementation()`.
         *
         * This function does not return to its internal call site, it will return directly to the external caller.
         */
        function _fallback() internal virtual {
            _delegate(_implementation());
        }
    
        /**
         * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
         * function in the contract matches the call data.
         */
        fallback() external payable virtual {
            _fallback();
        }
    }
    
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol)
    
    // OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)
    
    /**
     * @dev Collection of functions related to the address type
     */
    library Address {
        /**
         * @dev The ETH balance of the account is not enough to perform the operation.
         */
        error AddressInsufficientBalance(address account);
    
        /**
         * @dev There's no code at `target` (it is not a contract).
         */
        error AddressEmptyCode(address target);
    
        /**
         * @dev A call to an address target failed. The target may have reverted.
         */
        error FailedInnerCall();
    
        /**
         * @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
         */
        function sendValue(address payable recipient, uint256 amount) internal {
            if (address(this).balance < amount) {
                revert AddressInsufficientBalance(address(this));
            }
    
            (bool success, ) = recipient.call{value: amount}("");
            if (!success) {
                revert FailedInnerCall();
            }
        }
    
        /**
         * @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 or custom error, it is bubbled
         * up by this function (like regular Solidity function calls). However, if
         * the call reverted with no returned reason, this function reverts with a
         * {FailedInnerCall} error.
         *
         * 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.
         */
        function functionCall(address target, bytes memory data) internal returns (bytes memory) {
            return functionCallWithValue(target, data, 0);
        }
    
        /**
         * @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`.
         */
        function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
            if (address(this).balance < value) {
                revert AddressInsufficientBalance(address(this));
            }
            (bool success, bytes memory returndata) = target.call{value: value}(data);
            return verifyCallResultFromTarget(target, success, returndata);
        }
    
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
         * but performing a static call.
         */
        function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
            (bool success, bytes memory returndata) = target.staticcall(data);
            return verifyCallResultFromTarget(target, success, returndata);
        }
    
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
         * but performing a delegate call.
         */
        function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
            (bool success, bytes memory returndata) = target.delegatecall(data);
            return verifyCallResultFromTarget(target, success, returndata);
        }
    
        /**
         * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
         * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
         * unsuccessful call.
         */
        function verifyCallResultFromTarget(
            address target,
            bool success,
            bytes memory returndata
        ) internal view returns (bytes memory) {
            if (!success) {
                _revert(returndata);
            } else {
                // only check if target is a contract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                if (returndata.length == 0 && target.code.length == 0) {
                    revert AddressEmptyCode(target);
                }
                return returndata;
            }
        }
    
        /**
         * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
         * revert reason or with a default {FailedInnerCall} error.
         */
        function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
            if (!success) {
                _revert(returndata);
            } else {
                return returndata;
            }
        }
    
        /**
         * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
         */
        function _revert(bytes memory returndata) 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 FailedInnerCall();
            }
        }
    }
    
    // OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)
    // This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
    
    /**
     * @dev Library for reading and writing primitive types to specific storage slots.
     *
     * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
     * This library helps with reading and writing to such slots without the need for inline assembly.
     *
     * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
     *
     * Example usage to set ERC1967 implementation slot:
     * ```solidity
     * contract ERC1967 {
     *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
     *
     *     function _getImplementation() internal view returns (address) {
     *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
     *     }
     *
     *     function _setImplementation(address newImplementation) internal {
     *         require(newImplementation.code.length > 0);
     *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
     *     }
     * }
     * ```
     */
    library StorageSlot {
        struct AddressSlot {
            address value;
        }
    
        struct BooleanSlot {
            bool value;
        }
    
        struct Bytes32Slot {
            bytes32 value;
        }
    
        struct Uint256Slot {
            uint256 value;
        }
    
        struct StringSlot {
            string value;
        }
    
        struct BytesSlot {
            bytes value;
        }
    
        /**
         * @dev Returns an `AddressSlot` with member `value` located at `slot`.
         */
        function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
         */
        function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
         */
        function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
         */
        function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `StringSlot` with member `value` located at `slot`.
         */
        function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
         */
        function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := store.slot
            }
        }
    
        /**
         * @dev Returns an `BytesSlot` with member `value` located at `slot`.
         */
        function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := slot
            }
        }
    
        /**
         * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
         */
        function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
            /// @solidity memory-safe-assembly
            assembly {
                r.slot := store.slot
            }
        }
    }
    
    /**
     * @dev This abstract contract provides getters and event emitting update functions for
     * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
     */
    library ERC1967Utils {
        // We re-declare ERC-1967 events here because they can't be used directly from IERC1967.
        // This will be fixed in Solidity 0.8.21. At that point we should remove these events.
        /**
         * @dev Emitted when the implementation is upgraded.
         */
        event Upgraded(address indexed implementation);
    
        /**
         * @dev Emitted when the admin account has changed.
         */
        event AdminChanged(address previousAdmin, address newAdmin);
    
        /**
         * @dev Emitted when the beacon is changed.
         */
        event BeaconUpgraded(address indexed beacon);
    
        /**
         * @dev Storage slot with the address of the current implementation.
         * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.
         */
        // solhint-disable-next-line private-vars-leading-underscore
        bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
    
        /**
         * @dev The `implementation` of the proxy is invalid.
         */
        error ERC1967InvalidImplementation(address implementation);
    
        /**
         * @dev The `admin` of the proxy is invalid.
         */
        error ERC1967InvalidAdmin(address admin);
    
        /**
         * @dev The `beacon` of the proxy is invalid.
         */
        error ERC1967InvalidBeacon(address beacon);
    
        /**
         * @dev An upgrade function sees `msg.value > 0` that may be lost.
         */
        error ERC1967NonPayable();
    
        /**
         * @dev Returns the current implementation address.
         */
        function getImplementation() internal view returns (address) {
            return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
        }
    
        /**
         * @dev Stores a new address in the EIP1967 implementation slot.
         */
        function _setImplementation(address newImplementation) private {
            if (newImplementation.code.length == 0) {
                revert ERC1967InvalidImplementation(newImplementation);
            }
            StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation;
        }
    
        /**
         * @dev Performs implementation upgrade with additional setup call if data is nonempty.
         * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
         * to avoid stuck value in the contract.
         *
         * Emits an {IERC1967-Upgraded} event.
         */
        function upgradeToAndCall(address newImplementation, bytes memory data) internal {
            _setImplementation(newImplementation);
            emit Upgraded(newImplementation);
    
            if (data.length > 0) {
                Address.functionDelegateCall(newImplementation, data);
            } else {
                _checkNonPayable();
            }
        }
    
        /**
         * @dev Storage slot with the admin of the contract.
         * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
         */
        // solhint-disable-next-line private-vars-leading-underscore
        bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
    
        /**
         * @dev Returns the current admin.
         *
         * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using
         * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
         * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
         */
        function getAdmin() internal view returns (address) {
            return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
        }
    
        /**
         * @dev Stores a new address in the EIP1967 admin slot.
         */
        function _setAdmin(address newAdmin) private {
            if (newAdmin == address(0)) {
                revert ERC1967InvalidAdmin(address(0));
            }
            StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;
        }
    
        /**
         * @dev Changes the admin of the proxy.
         *
         * Emits an {IERC1967-AdminChanged} event.
         */
        function changeAdmin(address newAdmin) internal {
            emit AdminChanged(getAdmin(), newAdmin);
            _setAdmin(newAdmin);
        }
    
        /**
         * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
         * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1.
         */
        // solhint-disable-next-line private-vars-leading-underscore
        bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
    
        /**
         * @dev Returns the current beacon.
         */
        function getBeacon() internal view returns (address) {
            return StorageSlot.getAddressSlot(BEACON_SLOT).value;
        }
    
        /**
         * @dev Stores a new beacon in the EIP1967 beacon slot.
         */
        function _setBeacon(address newBeacon) private {
            if (newBeacon.code.length == 0) {
                revert ERC1967InvalidBeacon(newBeacon);
            }
    
            StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;
    
            address beaconImplementation = IBeacon(newBeacon).implementation();
            if (beaconImplementation.code.length == 0) {
                revert ERC1967InvalidImplementation(beaconImplementation);
            }
        }
    
        /**
         * @dev Change the beacon and trigger a setup call if data is nonempty.
         * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
         * to avoid stuck value in the contract.
         *
         * Emits an {IERC1967-BeaconUpgraded} event.
         *
         * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since
         * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for
         * efficiency.
         */
        function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal {
            _setBeacon(newBeacon);
            emit BeaconUpgraded(newBeacon);
    
            if (data.length > 0) {
                Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
            } else {
                _checkNonPayable();
            }
        }
    
        /**
         * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract
         * if an upgrade doesn't perform an initialization call.
         */
        function _checkNonPayable() private {
            if (msg.value > 0) {
                revert ERC1967NonPayable();
            }
        }
    }
    
    /**
     * @dev This contract implements a proxy that gets the implementation address for each call from an {UpgradeableBeacon}.
     *
     * The beacon address can only be set once during construction, and cannot be changed afterwards. It is stored in an
     * immutable variable to avoid unnecessary storage reads, and also in the beacon storage slot specified by
     * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] so that it can be accessed externally.
     *
     * CAUTION: Since the beacon address can never be changed, you must ensure that you either control the beacon, or trust
     * the beacon to not upgrade the implementation maliciously.
     *
     * IMPORTANT: Do not use the implementation logic to modify the beacon storage slot. Doing so would leave the proxy in
     * an inconsistent state where the beacon storage slot does not match the beacon address.
     */
    contract BeaconProxy is Proxy {
        // An immutable address for the beacon to avoid unnecessary SLOADs before each delegate call.
        address private immutable _beacon;
    
        /**
         * @dev Initializes the proxy with `beacon`.
         *
         * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This
         * will typically be an encoded function call, and allows initializing the storage of the proxy like a Solidity
         * constructor.
         *
         * Requirements:
         *
         * - `beacon` must be a contract with the interface {IBeacon}.
         * - If `data` is empty, `msg.value` must be zero.
         */
        constructor(address beacon, bytes memory data) payable {
            ERC1967Utils.upgradeBeaconToAndCall(beacon, data);
            _beacon = beacon;
        }
    
        /**
         * @dev Returns the current implementation address of the associated beacon.
         */
        function _implementation() internal view virtual override returns (address) {
            return IBeacon(_getBeacon()).implementation();
        }
    
        /**
         * @dev Returns the beacon.
         */
        function _getBeacon() internal view virtual returns (address) {
            return _beacon;
        }
    }

    File 2 of 3: UpgradeableBeacon
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/UpgradeableBeacon.sol)
    
    pragma solidity ^0.8.20;
    
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)
    
    /**
     * @dev This is the interface that {BeaconProxy} expects of its beacon.
     */
    interface IBeacon {
        /**
         * @dev Must return an address that can be used as a delegate call target.
         *
         * {UpgradeableBeacon} will check that this address is a contract.
         */
        function implementation() external view returns (address);
    }
    
    // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
    
    // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.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 Context {
        function _msgSender() internal view virtual returns (address) {
            return msg.sender;
        }
    
        function _msgData() internal view virtual returns (bytes calldata) {
            return msg.data;
        }
    
        function _contextSuffixLength() internal view virtual returns (uint256) {
            return 0;
        }
    }
    
    /**
     * @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.
     *
     * The initial owner is set to the address provided by the deployer. 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 Ownable is Context {
        address private _owner;
    
        /**
         * @dev The caller account is not authorized to perform an operation.
         */
        error OwnableUnauthorizedAccount(address account);
    
        /**
         * @dev The owner is not a valid owner account. (eg. `address(0)`)
         */
        error OwnableInvalidOwner(address owner);
    
        event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    
        /**
         * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
         */
        constructor(address initialOwner) {
            if (initialOwner == address(0)) {
                revert OwnableInvalidOwner(address(0));
            }
            _transferOwnership(initialOwner);
        }
    
        /**
         * @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 {
            if (owner() != _msgSender()) {
                revert OwnableUnauthorizedAccount(_msgSender());
            }
        }
    
        /**
         * @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 {
            if (newOwner == address(0)) {
                revert OwnableInvalidOwner(address(0));
            }
            _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 contract is used in conjunction with one or more instances of {BeaconProxy} to determine their
     * implementation contract, which is where they will delegate all function calls.
     *
     * An owner is able to change the implementation the beacon points to, thus upgrading the proxies that use this beacon.
     */
    contract UpgradeableBeacon is IBeacon, Ownable {
        address private _implementation;
    
        /**
         * @dev The `implementation` of the beacon is invalid.
         */
        error BeaconInvalidImplementation(address implementation);
    
        /**
         * @dev Emitted when the implementation returned by the beacon is changed.
         */
        event Upgraded(address indexed implementation);
    
        /**
         * @dev Sets the address of the initial implementation, and the initial owner who can upgrade the beacon.
         */
        constructor(address implementation_, address initialOwner) Ownable(initialOwner) {
            _setImplementation(implementation_);
        }
    
        /**
         * @dev Returns the current implementation address.
         */
        function implementation() public view virtual returns (address) {
            return _implementation;
        }
    
        /**
         * @dev Upgrades the beacon to a new implementation.
         *
         * Emits an {Upgraded} event.
         *
         * Requirements:
         *
         * - msg.sender must be the owner of the contract.
         * - `newImplementation` must be a contract.
         */
        function upgradeTo(address newImplementation) public virtual onlyOwner {
            _setImplementation(newImplementation);
        }
    
        /**
         * @dev Sets the implementation contract address for this beacon
         *
         * Requirements:
         *
         * - `newImplementation` must be a contract.
         */
        function _setImplementation(address newImplementation) private {
            if (newImplementation.code.length == 0) {
                revert BeaconInvalidImplementation(newImplementation);
            }
            _implementation = newImplementation;
            emit Upgraded(newImplementation);
        }
    }

    File 3 of 3: SolvBTCYieldToken
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)
    pragma solidity ^0.8.20;
    import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
    import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
    import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol";
    import {Initializable} from "../proxy/utils/Initializable.sol";
    /**
     * @dev Contract module that allows children to implement role-based access
     * control mechanisms. This is a lightweight version that doesn't allow enumerating role
     * members except through off-chain means by accessing the contract event logs. Some
     * applications may benefit from on-chain enumerability, for those cases see
     * {AccessControlEnumerable}.
     *
     * Roles are referred to by their `bytes32` identifier. These should be exposed
     * in the external API and be unique. The best way to achieve this is by
     * using `public constant` hash digests:
     *
     * ```solidity
     * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
     * ```
     *
     * Roles can be used to represent a set of permissions. To restrict access to a
     * function call, use {hasRole}:
     *
     * ```solidity
     * function foo() public {
     *     require(hasRole(MY_ROLE, msg.sender));
     *     ...
     * }
     * ```
     *
     * Roles can be granted and revoked dynamically via the {grantRole} and
     * {revokeRole} functions. Each role has an associated admin role, and only
     * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
     *
     * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
     * that only accounts with this role will be able to grant or revoke other
     * roles. More complex role relationships can be created by using
     * {_setRoleAdmin}.
     *
     * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
     * grant and revoke this role. Extra precautions should be taken to secure
     * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
     * to enforce additional security measures for this role.
     */
    abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable {
        struct RoleData {
            mapping(address account => bool) hasRole;
            bytes32 adminRole;
        }
        bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
        /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl
        struct AccessControlStorage {
            mapping(bytes32 role => RoleData) _roles;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800;
        function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) {
            assembly {
                $.slot := AccessControlStorageLocation
            }
        }
        /**
         * @dev Modifier that checks that an account has a specific role. Reverts
         * with an {AccessControlUnauthorizedAccount} error including the required role.
         */
        modifier onlyRole(bytes32 role) {
            _checkRole(role);
            _;
        }
        function __AccessControl_init() internal onlyInitializing {
        }
        function __AccessControl_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev See {IERC165-supportsInterface}.
         */
        function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
            return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
        }
        /**
         * @dev Returns `true` if `account` has been granted `role`.
         */
        function hasRole(bytes32 role, address account) public view virtual returns (bool) {
            AccessControlStorage storage $ = _getAccessControlStorage();
            return $._roles[role].hasRole[account];
        }
        /**
         * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
         * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
         */
        function _checkRole(bytes32 role) internal view virtual {
            _checkRole(role, _msgSender());
        }
        /**
         * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
         * is missing `role`.
         */
        function _checkRole(bytes32 role, address account) internal view virtual {
            if (!hasRole(role, account)) {
                revert AccessControlUnauthorizedAccount(account, role);
            }
        }
        /**
         * @dev Returns the admin role that controls `role`. See {grantRole} and
         * {revokeRole}.
         *
         * To change a role's admin, use {_setRoleAdmin}.
         */
        function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
            AccessControlStorage storage $ = _getAccessControlStorage();
            return $._roles[role].adminRole;
        }
        /**
         * @dev Grants `role` to `account`.
         *
         * If `account` had not been already granted `role`, emits a {RoleGranted}
         * event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         *
         * May emit a {RoleGranted} event.
         */
        function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
            _grantRole(role, account);
        }
        /**
         * @dev Revokes `role` from `account`.
         *
         * If `account` had been granted `role`, emits a {RoleRevoked} event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         *
         * May emit a {RoleRevoked} event.
         */
        function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
            _revokeRole(role, account);
        }
        /**
         * @dev Revokes `role` from the calling account.
         *
         * Roles are often managed via {grantRole} and {revokeRole}: this function's
         * purpose is to provide a mechanism for accounts to lose their privileges
         * if they are compromised (such as when a trusted device is misplaced).
         *
         * If the calling account had been revoked `role`, emits a {RoleRevoked}
         * event.
         *
         * Requirements:
         *
         * - the caller must be `callerConfirmation`.
         *
         * May emit a {RoleRevoked} event.
         */
        function renounceRole(bytes32 role, address callerConfirmation) public virtual {
            if (callerConfirmation != _msgSender()) {
                revert AccessControlBadConfirmation();
            }
            _revokeRole(role, callerConfirmation);
        }
        /**
         * @dev Sets `adminRole` as ``role``'s admin role.
         *
         * Emits a {RoleAdminChanged} event.
         */
        function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
            AccessControlStorage storage $ = _getAccessControlStorage();
            bytes32 previousAdminRole = getRoleAdmin(role);
            $._roles[role].adminRole = adminRole;
            emit RoleAdminChanged(role, previousAdminRole, adminRole);
        }
        /**
         * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
         *
         * Internal function without access restriction.
         *
         * May emit a {RoleGranted} event.
         */
        function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
            AccessControlStorage storage $ = _getAccessControlStorage();
            if (!hasRole(role, account)) {
                $._roles[role].hasRole[account] = true;
                emit RoleGranted(role, account, _msgSender());
                return true;
            } else {
                return false;
            }
        }
        /**
         * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
         *
         * Internal function without access restriction.
         *
         * May emit a {RoleRevoked} event.
         */
        function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
            AccessControlStorage storage $ = _getAccessControlStorage();
            if (hasRole(role, account)) {
                $._roles[role].hasRole[account] = false;
                emit RoleRevoked(role, account, _msgSender());
                return true;
            } else {
                return false;
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable2Step.sol)
    pragma solidity ^0.8.20;
    import {OwnableUpgradeable} from "./OwnableUpgradeable.sol";
    import {Initializable} from "../proxy/utils/Initializable.sol";
    /**
     * @dev Contract module which provides access control mechanism, where
     * there is an account (an owner) that can be granted exclusive access to
     * specific functions.
     *
     * The initial owner is specified at deployment time in the constructor for `Ownable`. This
     * can later be changed with {transferOwnership} and {acceptOwnership}.
     *
     * This module is used through inheritance. It will make available all functions
     * from parent (Ownable).
     */
    abstract contract Ownable2StepUpgradeable is Initializable, OwnableUpgradeable {
        /// @custom:storage-location erc7201:openzeppelin.storage.Ownable2Step
        struct Ownable2StepStorage {
            address _pendingOwner;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable2Step")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant Ownable2StepStorageLocation = 0x237e158222e3e6968b72b9db0d8043aacf074ad9f650f0d1606b4d82ee432c00;
        function _getOwnable2StepStorage() private pure returns (Ownable2StepStorage storage $) {
            assembly {
                $.slot := Ownable2StepStorageLocation
            }
        }
        event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);
        function __Ownable2Step_init() internal onlyInitializing {
        }
        function __Ownable2Step_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev Returns the address of the pending owner.
         */
        function pendingOwner() public view virtual returns (address) {
            Ownable2StepStorage storage $ = _getOwnable2StepStorage();
            return $._pendingOwner;
        }
        /**
         * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
         * Can only be called by the current owner.
         */
        function transferOwnership(address newOwner) public virtual override onlyOwner {
            Ownable2StepStorage storage $ = _getOwnable2StepStorage();
            $._pendingOwner = newOwner;
            emit OwnershipTransferStarted(owner(), newOwner);
        }
        /**
         * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
         * Internal function without access restriction.
         */
        function _transferOwnership(address newOwner) internal virtual override {
            Ownable2StepStorage storage $ = _getOwnable2StepStorage();
            delete $._pendingOwner;
            super._transferOwnership(newOwner);
        }
        /**
         * @dev The new owner accepts the ownership transfer.
         */
        function acceptOwnership() public virtual {
            address sender = _msgSender();
            if (pendingOwner() != sender) {
                revert OwnableUnauthorizedAccount(sender);
            }
            _transferOwnership(sender);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
    pragma solidity ^0.8.20;
    import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
    import {Initializable} from "../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.
     *
     * The initial owner is set to the address provided by the deployer. 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 {
        /// @custom:storage-location erc7201:openzeppelin.storage.Ownable
        struct OwnableStorage {
            address _owner;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;
        function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
            assembly {
                $.slot := OwnableStorageLocation
            }
        }
        /**
         * @dev The caller account is not authorized to perform an operation.
         */
        error OwnableUnauthorizedAccount(address account);
        /**
         * @dev The owner is not a valid owner account. (eg. `address(0)`)
         */
        error OwnableInvalidOwner(address owner);
        event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
        /**
         * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
         */
        function __Ownable_init(address initialOwner) internal onlyInitializing {
            __Ownable_init_unchained(initialOwner);
        }
        function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
            if (initialOwner == address(0)) {
                revert OwnableInvalidOwner(address(0));
            }
            _transferOwnership(initialOwner);
        }
        /**
         * @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) {
            OwnableStorage storage $ = _getOwnableStorage();
            return $._owner;
        }
        /**
         * @dev Throws if the sender is not the owner.
         */
        function _checkOwner() internal view virtual {
            if (owner() != _msgSender()) {
                revert OwnableUnauthorizedAccount(_msgSender());
            }
        }
        /**
         * @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 {
            if (newOwner == address(0)) {
                revert OwnableInvalidOwner(address(0));
            }
            _transferOwnership(newOwner);
        }
        /**
         * @dev Transfers ownership of the contract to a new account (`newOwner`).
         * Internal function without access restriction.
         */
        function _transferOwnership(address newOwner) internal virtual {
            OwnableStorage storage $ = _getOwnableStorage();
            address oldOwner = $._owner;
            $._owner = newOwner;
            emit OwnershipTransferred(oldOwner, newOwner);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)
    pragma solidity ^0.8.20;
    /**
     * @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 Storage of the initializable contract.
         *
         * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
         * when using with upgradeable contracts.
         *
         * @custom:storage-location erc7201:openzeppelin.storage.Initializable
         */
        struct InitializableStorage {
            /**
             * @dev Indicates that the contract has been initialized.
             */
            uint64 _initialized;
            /**
             * @dev Indicates that the contract is in the process of being initialized.
             */
            bool _initializing;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;
        /**
         * @dev The contract is already initialized.
         */
        error InvalidInitialization();
        /**
         * @dev The contract is not initializing.
         */
        error NotInitializing();
        /**
         * @dev Triggered when the contract has been initialized or reinitialized.
         */
        event Initialized(uint64 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 in the context of a constructor an `initializer` may be invoked any
         * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
         * production.
         *
         * Emits an {Initialized} event.
         */
        modifier initializer() {
            // solhint-disable-next-line var-name-mixedcase
            InitializableStorage storage $ = _getInitializableStorage();
            // Cache values to avoid duplicated sloads
            bool isTopLevelCall = !$._initializing;
            uint64 initialized = $._initialized;
            // Allowed calls:
            // - initialSetup: the contract is not in the initializing state and no previous version was
            //                 initialized
            // - construction: the contract is initialized at version 1 (no reininitialization) and the
            //                 current contract is just being deployed
            bool initialSetup = initialized == 0 && isTopLevelCall;
            bool construction = initialized == 1 && address(this).code.length == 0;
            if (!initialSetup && !construction) {
                revert InvalidInitialization();
            }
            $._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 2**64 - 1 will prevent any future reinitialization.
         *
         * Emits an {Initialized} event.
         */
        modifier reinitializer(uint64 version) {
            // solhint-disable-next-line var-name-mixedcase
            InitializableStorage storage $ = _getInitializableStorage();
            if ($._initializing || $._initialized >= version) {
                revert InvalidInitialization();
            }
            $._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() {
            _checkInitializing();
            _;
        }
        /**
         * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
         */
        function _checkInitializing() internal view virtual {
            if (!_isInitializing()) {
                revert NotInitializing();
            }
        }
        /**
         * @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 {
            // solhint-disable-next-line var-name-mixedcase
            InitializableStorage storage $ = _getInitializableStorage();
            if ($._initializing) {
                revert InvalidInitialization();
            }
            if ($._initialized != type(uint64).max) {
                $._initialized = type(uint64).max;
                emit Initialized(type(uint64).max);
            }
        }
        /**
         * @dev Returns the highest version that has been initialized. See {reinitializer}.
         */
        function _getInitializedVersion() internal view returns (uint64) {
            return _getInitializableStorage()._initialized;
        }
        /**
         * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
         */
        function _isInitializing() internal view returns (bool) {
            return _getInitializableStorage()._initializing;
        }
        /**
         * @dev Returns a pointer to the storage namespace.
         */
        // solhint-disable-next-line var-name-mixedcase
        function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
            assembly {
                $.slot := INITIALIZABLE_STORAGE
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)
    pragma solidity ^0.8.20;
    import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
    import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
    import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol";
    import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol";
    import {Initializable} from "../../proxy/utils/Initializable.sol";
    /**
     * @dev Implementation of the {IERC20} interface.
     *
     * This implementation is agnostic to the way tokens are created. This means
     * that a supply mechanism has to be added in a derived contract using {_mint}.
     *
     * TIP: For a detailed writeup see our guide
     * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
     * to implement supply mechanisms].
     *
     * The default value of {decimals} is 18. To change this, you should override
     * this function so it returns a different value.
     *
     * We have followed general OpenZeppelin Contracts guidelines: functions revert
     * instead returning `false` on failure. This behavior is nonetheless
     * conventional and does not conflict with the expectations of ERC20
     * applications.
     *
     * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
     * This allows applications to reconstruct the allowance for all accounts just
     * by listening to said events. Other implementations of the EIP may not emit
     * these events, as it isn't required by the specification.
     */
    abstract contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors {
        /// @custom:storage-location erc7201:openzeppelin.storage.ERC20
        struct ERC20Storage {
            mapping(address account => uint256) _balances;
            mapping(address account => mapping(address spender => uint256)) _allowances;
            uint256 _totalSupply;
            string _name;
            string _symbol;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant ERC20StorageLocation = 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00;
        function _getERC20Storage() private pure returns (ERC20Storage storage $) {
            assembly {
                $.slot := ERC20StorageLocation
            }
        }
        /**
         * @dev Sets the values for {name} and {symbol}.
         *
         * All two of these values are immutable: they can only be set once during
         * construction.
         */
        function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
            __ERC20_init_unchained(name_, symbol_);
        }
        function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
            ERC20Storage storage $ = _getERC20Storage();
            $._name = name_;
            $._symbol = symbol_;
        }
        /**
         * @dev Returns the name of the token.
         */
        function name() public view virtual returns (string memory) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._name;
        }
        /**
         * @dev Returns the symbol of the token, usually a shorter version of the
         * name.
         */
        function symbol() public view virtual returns (string memory) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._symbol;
        }
        /**
         * @dev Returns the number of decimals used to get its user representation.
         * For example, if `decimals` equals `2`, a balance of `505` tokens should
         * be displayed to a user as `5.05` (`505 / 10 ** 2`).
         *
         * Tokens usually opt for a value of 18, imitating the relationship between
         * Ether and Wei. This is the default value returned by this function, unless
         * it's overridden.
         *
         * NOTE: This information is only used for _display_ purposes: it in
         * no way affects any of the arithmetic of the contract, including
         * {IERC20-balanceOf} and {IERC20-transfer}.
         */
        function decimals() public view virtual returns (uint8) {
            return 18;
        }
        /**
         * @dev See {IERC20-totalSupply}.
         */
        function totalSupply() public view virtual returns (uint256) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._totalSupply;
        }
        /**
         * @dev See {IERC20-balanceOf}.
         */
        function balanceOf(address account) public view virtual returns (uint256) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._balances[account];
        }
        /**
         * @dev See {IERC20-transfer}.
         *
         * Requirements:
         *
         * - `to` cannot be the zero address.
         * - the caller must have a balance of at least `value`.
         */
        function transfer(address to, uint256 value) public virtual returns (bool) {
            address owner = _msgSender();
            _transfer(owner, to, value);
            return true;
        }
        /**
         * @dev See {IERC20-allowance}.
         */
        function allowance(address owner, address spender) public view virtual returns (uint256) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._allowances[owner][spender];
        }
        /**
         * @dev See {IERC20-approve}.
         *
         * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
         * `transferFrom`. This is semantically equivalent to an infinite approval.
         *
         * Requirements:
         *
         * - `spender` cannot be the zero address.
         */
        function approve(address spender, uint256 value) public virtual returns (bool) {
            address owner = _msgSender();
            _approve(owner, spender, value);
            return true;
        }
        /**
         * @dev See {IERC20-transferFrom}.
         *
         * Emits an {Approval} event indicating the updated allowance. This is not
         * required by the EIP. See the note at the beginning of {ERC20}.
         *
         * NOTE: Does not update the allowance if the current allowance
         * is the maximum `uint256`.
         *
         * Requirements:
         *
         * - `from` and `to` cannot be the zero address.
         * - `from` must have a balance of at least `value`.
         * - the caller must have allowance for ``from``'s tokens of at least
         * `value`.
         */
        function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
            address spender = _msgSender();
            _spendAllowance(from, spender, value);
            _transfer(from, to, value);
            return true;
        }
        /**
         * @dev Moves a `value` amount of tokens from `from` to `to`.
         *
         * This internal function is equivalent to {transfer}, and can be used to
         * e.g. implement automatic token fees, slashing mechanisms, etc.
         *
         * Emits a {Transfer} event.
         *
         * NOTE: This function is not virtual, {_update} should be overridden instead.
         */
        function _transfer(address from, address to, uint256 value) internal {
            if (from == address(0)) {
                revert ERC20InvalidSender(address(0));
            }
            if (to == address(0)) {
                revert ERC20InvalidReceiver(address(0));
            }
            _update(from, to, value);
        }
        /**
         * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
         * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
         * this function.
         *
         * Emits a {Transfer} event.
         */
        function _update(address from, address to, uint256 value) internal virtual {
            ERC20Storage storage $ = _getERC20Storage();
            if (from == address(0)) {
                // Overflow check required: The rest of the code assumes that totalSupply never overflows
                $._totalSupply += value;
            } else {
                uint256 fromBalance = $._balances[from];
                if (fromBalance < value) {
                    revert ERC20InsufficientBalance(from, fromBalance, value);
                }
                unchecked {
                    // Overflow not possible: value <= fromBalance <= totalSupply.
                    $._balances[from] = fromBalance - value;
                }
            }
            if (to == address(0)) {
                unchecked {
                    // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                    $._totalSupply -= value;
                }
            } else {
                unchecked {
                    // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                    $._balances[to] += value;
                }
            }
            emit Transfer(from, to, value);
        }
        /**
         * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
         * Relies on the `_update` mechanism
         *
         * Emits a {Transfer} event with `from` set to the zero address.
         *
         * NOTE: This function is not virtual, {_update} should be overridden instead.
         */
        function _mint(address account, uint256 value) internal {
            if (account == address(0)) {
                revert ERC20InvalidReceiver(address(0));
            }
            _update(address(0), account, value);
        }
        /**
         * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
         * Relies on the `_update` mechanism.
         *
         * Emits a {Transfer} event with `to` set to the zero address.
         *
         * NOTE: This function is not virtual, {_update} should be overridden instead
         */
        function _burn(address account, uint256 value) internal {
            if (account == address(0)) {
                revert ERC20InvalidSender(address(0));
            }
            _update(account, address(0), value);
        }
        /**
         * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
         *
         * This internal function is equivalent to `approve`, and can be used to
         * e.g. set automatic allowances for certain subsystems, etc.
         *
         * Emits an {Approval} event.
         *
         * Requirements:
         *
         * - `owner` cannot be the zero address.
         * - `spender` cannot be the zero address.
         *
         * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
         */
        function _approve(address owner, address spender, uint256 value) internal {
            _approve(owner, spender, value, true);
        }
        /**
         * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
         *
         * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
         * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
         * `Approval` event during `transferFrom` operations.
         *
         * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
         * true using the following override:
         * ```
         * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
         *     super._approve(owner, spender, value, true);
         * }
         * ```
         *
         * Requirements are the same as {_approve}.
         */
        function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
            ERC20Storage storage $ = _getERC20Storage();
            if (owner == address(0)) {
                revert ERC20InvalidApprover(address(0));
            }
            if (spender == address(0)) {
                revert ERC20InvalidSpender(address(0));
            }
            $._allowances[owner][spender] = value;
            if (emitEvent) {
                emit Approval(owner, spender, value);
            }
        }
        /**
         * @dev Updates `owner` s allowance for `spender` based on spent `value`.
         *
         * Does not update the allowance value in case of infinite allowance.
         * Revert if not enough allowance is available.
         *
         * Does not emit an {Approval} event.
         */
        function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
            uint256 currentAllowance = allowance(owner, spender);
            if (currentAllowance != type(uint256).max) {
                if (currentAllowance < value) {
                    revert ERC20InsufficientAllowance(spender, currentAllowance, value);
                }
                unchecked {
                    _approve(owner, spender, currentAllowance - value, false);
                }
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
    pragma solidity ^0.8.20;
    import {Initializable} from "../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;
        }
        function _contextSuffixLength() internal view virtual returns (uint256) {
            return 0;
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)
    pragma solidity ^0.8.20;
    import {Initializable} from "../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;
        /// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard
        struct ReentrancyGuardStorage {
            uint256 _status;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00;
        function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) {
            assembly {
                $.slot := ReentrancyGuardStorageLocation
            }
        }
        /**
         * @dev Unauthorized reentrant call.
         */
        error ReentrancyGuardReentrantCall();
        function __ReentrancyGuard_init() internal onlyInitializing {
            __ReentrancyGuard_init_unchained();
        }
        function __ReentrancyGuard_init_unchained() internal onlyInitializing {
            ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
            $._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 {
            ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
            // On the first call to nonReentrant, _status will be NOT_ENTERED
            if ($._status == ENTERED) {
                revert ReentrancyGuardReentrantCall();
            }
            // Any calls to nonReentrant after this point will fail
            $._status = ENTERED;
        }
        function _nonReentrantAfter() private {
            ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
            // 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) {
            ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
            return $._status == ENTERED;
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)
    pragma solidity ^0.8.20;
    import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
    import {Initializable} from "../../proxy/utils/Initializable.sol";
    /**
     * @dev Implementation of the {IERC165} interface.
     *
     * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
     * for the additional interface id that will be supported. For example:
     *
     * ```solidity
     * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
     *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
     * }
     * ```
     */
    abstract contract ERC165Upgradeable is Initializable, IERC165 {
        function __ERC165_init() internal onlyInitializing {
        }
        function __ERC165_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev See {IERC165-supportsInterface}.
         */
        function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
            return interfaceId == type(IERC165).interfaceId;
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (access/IAccessControl.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev External interface of AccessControl declared to support ERC165 detection.
     */
    interface IAccessControl {
        /**
         * @dev The `account` is missing a role.
         */
        error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);
        /**
         * @dev The caller of a function is not the expected one.
         *
         * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
         */
        error AccessControlBadConfirmation();
        /**
         * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
         *
         * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
         * {RoleAdminChanged} not being emitted signaling this.
         */
        event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
        /**
         * @dev Emitted when `account` is granted `role`.
         *
         * `sender` is the account that originated the contract call, an admin role
         * bearer except when using {AccessControl-_setupRole}.
         */
        event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
        /**
         * @dev Emitted when `account` is revoked `role`.
         *
         * `sender` is the account that originated the contract call:
         *   - if using `revokeRole`, it is the admin role bearer
         *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
         */
        event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
        /**
         * @dev Returns `true` if `account` has been granted `role`.
         */
        function hasRole(bytes32 role, address account) external view returns (bool);
        /**
         * @dev Returns the admin role that controls `role`. See {grantRole} and
         * {revokeRole}.
         *
         * To change a role's admin, use {AccessControl-_setRoleAdmin}.
         */
        function getRoleAdmin(bytes32 role) external view returns (bytes32);
        /**
         * @dev Grants `role` to `account`.
         *
         * If `account` had not been already granted `role`, emits a {RoleGranted}
         * event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         */
        function grantRole(bytes32 role, address account) external;
        /**
         * @dev Revokes `role` from `account`.
         *
         * If `account` had been granted `role`, emits a {RoleRevoked} event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         */
        function revokeRole(bytes32 role, address account) external;
        /**
         * @dev Revokes `role` from the calling account.
         *
         * Roles are often managed via {grantRole} and {revokeRole}: this function's
         * purpose is to provide a mechanism for accounts to lose their privileges
         * if they are compromised (such as when a trusted device is misplaced).
         *
         * If the calling account had been granted `role`, emits a {RoleRevoked}
         * event.
         *
         * Requirements:
         *
         * - the caller must be `callerConfirmation`.
         */
        function renounceRole(bytes32 role, address callerConfirmation) external;
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Standard ERC20 Errors
     * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
     */
    interface IERC20Errors {
        /**
         * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         * @param balance Current balance for the interacting account.
         * @param needed Minimum amount required to perform a transfer.
         */
        error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
        /**
         * @dev Indicates a failure with the token `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         */
        error ERC20InvalidSender(address sender);
        /**
         * @dev Indicates a failure with the token `receiver`. Used in transfers.
         * @param receiver Address to which tokens are being transferred.
         */
        error ERC20InvalidReceiver(address receiver);
        /**
         * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
         * @param spender Address that may be allowed to operate on tokens without being their owner.
         * @param allowance Amount of tokens a `spender` is allowed to operate with.
         * @param needed Minimum amount required to perform a transfer.
         */
        error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
        /**
         * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
         * @param approver Address initiating an approval operation.
         */
        error ERC20InvalidApprover(address approver);
        /**
         * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
         * @param spender Address that may be allowed to operate on tokens without being their owner.
         */
        error ERC20InvalidSpender(address spender);
    }
    /**
     * @dev Standard ERC721 Errors
     * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
     */
    interface IERC721Errors {
        /**
         * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
         * Used in balance queries.
         * @param owner Address of the current owner of a token.
         */
        error ERC721InvalidOwner(address owner);
        /**
         * @dev Indicates a `tokenId` whose `owner` is the zero address.
         * @param tokenId Identifier number of a token.
         */
        error ERC721NonexistentToken(uint256 tokenId);
        /**
         * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         * @param tokenId Identifier number of a token.
         * @param owner Address of the current owner of a token.
         */
        error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);
        /**
         * @dev Indicates a failure with the token `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         */
        error ERC721InvalidSender(address sender);
        /**
         * @dev Indicates a failure with the token `receiver`. Used in transfers.
         * @param receiver Address to which tokens are being transferred.
         */
        error ERC721InvalidReceiver(address receiver);
        /**
         * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
         * @param operator Address that may be allowed to operate on tokens without being their owner.
         * @param tokenId Identifier number of a token.
         */
        error ERC721InsufficientApproval(address operator, uint256 tokenId);
        /**
         * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
         * @param approver Address initiating an approval operation.
         */
        error ERC721InvalidApprover(address approver);
        /**
         * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
         * @param operator Address that may be allowed to operate on tokens without being their owner.
         */
        error ERC721InvalidOperator(address operator);
    }
    /**
     * @dev Standard ERC1155 Errors
     * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
     */
    interface IERC1155Errors {
        /**
         * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         * @param balance Current balance for the interacting account.
         * @param needed Minimum amount required to perform a transfer.
         * @param tokenId Identifier number of a token.
         */
        error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);
        /**
         * @dev Indicates a failure with the token `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         */
        error ERC1155InvalidSender(address sender);
        /**
         * @dev Indicates a failure with the token `receiver`. Used in transfers.
         * @param receiver Address to which tokens are being transferred.
         */
        error ERC1155InvalidReceiver(address receiver);
        /**
         * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
         * @param operator Address that may be allowed to operate on tokens without being their owner.
         * @param owner Address of the current owner of a token.
         */
        error ERC1155MissingApprovalForAll(address operator, address owner);
        /**
         * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
         * @param approver Address initiating an approval operation.
         */
        error ERC1155InvalidApprover(address approver);
        /**
         * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
         * @param operator Address that may be allowed to operate on tokens without being their owner.
         */
        error ERC1155InvalidOperator(address operator);
        /**
         * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
         * Used in batch transfers.
         * @param idsLength Length of the array of token identifiers
         * @param valuesLength Length of the array of token amounts
         */
        error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Interface of the ERC20 standard as defined in the EIP.
     */
    interface IERC20 {
        /**
         * @dev Emitted when `value` tokens are moved from one account (`from`) to
         * another (`to`).
         *
         * Note that `value` may be zero.
         */
        event Transfer(address indexed from, address indexed to, uint256 value);
        /**
         * @dev Emitted when the allowance of a `spender` for an `owner` is set by
         * a call to {approve}. `value` is the new allowance.
         */
        event Approval(address indexed owner, address indexed spender, uint256 value);
        /**
         * @dev Returns the value of tokens in existence.
         */
        function totalSupply() external view returns (uint256);
        /**
         * @dev Returns the value of tokens owned by `account`.
         */
        function balanceOf(address account) external view returns (uint256);
        /**
         * @dev Moves a `value` amount of tokens from the caller's account to `to`.
         *
         * Returns a boolean value indicating whether the operation succeeded.
         *
         * Emits a {Transfer} event.
         */
        function transfer(address to, uint256 value) external returns (bool);
        /**
         * @dev Returns the remaining number of tokens that `spender` will be
         * allowed to spend on behalf of `owner` through {transferFrom}. This is
         * zero by default.
         *
         * This value changes when {approve} or {transferFrom} are called.
         */
        function allowance(address owner, address spender) external view returns (uint256);
        /**
         * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
         * caller's tokens.
         *
         * Returns a boolean value indicating whether the operation succeeded.
         *
         * IMPORTANT: Beware that changing an allowance with this method brings the risk
         * that someone may use both the old and the new allowance by unfortunate
         * transaction ordering. One possible solution to mitigate this race
         * condition is to first reduce the spender's allowance to 0 and set the
         * desired value afterwards:
         * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
         *
         * Emits an {Approval} event.
         */
        function approve(address spender, uint256 value) external returns (bool);
        /**
         * @dev Moves a `value` amount of tokens from `from` to `to` using the
         * allowance mechanism. `value` is then deducted from the caller's
         * allowance.
         *
         * Returns a boolean value indicating whether the operation succeeded.
         *
         * Emits a {Transfer} event.
         */
        function transferFrom(address from, address to, uint256 value) external returns (bool);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)
    pragma solidity ^0.8.20;
    import {IERC20} from "../IERC20.sol";
    /**
     * @dev Interface for the optional metadata functions from the ERC20 standard.
     */
    interface IERC20Metadata is IERC20 {
        /**
         * @dev Returns the name of the token.
         */
        function name() external view returns (string memory);
        /**
         * @dev Returns the symbol of the token.
         */
        function symbol() external view returns (string memory);
        /**
         * @dev Returns the decimals places of the token.
         */
        function decimals() external view returns (uint8);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)
    pragma solidity ^0.8.20;
    /**
     * @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}.
     */
    interface IERC165 {
        /**
         * @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
    pragma solidity 0.8.20;
    import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
    import "@openzeppelin/contracts/utils/introspection/IERC165.sol";
    import "./external/IERC721Receiver.sol";
    import "./external/IERC3525Receiver.sol";
    interface ISolvBTC is IERC20, IERC721Receiver, IERC3525Receiver, IERC165 {
        error ERC721NotReceivable(address token);
        error ERC3525NotReceivable(address token);
        function mint(address account, uint256 value) external;
        function burn(address account, uint256 value) external;
        function burn(uint256 value) external;
        function solvBTCMultiAssetPool() external view returns (address);
    }// SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    interface ISolvBTCMultiAssetPool {
        function deposit(address sft_, uint256 sftId_, uint256 value_) external;
        function withdraw(address sft, uint256 slot, uint256 sftId, uint256 value) external returns (uint256 toSftId_);
        function isSftSlotDepositAllowed(address sft_, uint256 slot_) external view returns (bool);
        function isSftSlotWithdrawAllowed(address sft_, uint256 slot_) external view returns (bool);
        function getERC20(address sft_, uint256 slot_) external view returns (address);
        function getHoldingValueSftId(address sft_, uint256 slot_) external view returns (uint256);
        function getSftSlotBalance(address sft_, uint256 slot_) external view returns (uint256);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    import "./SolvBTC.sol";
    interface ISolvBTCYieldToken is ISolvBTC {
        function getValueByShares(uint256 shares) external view returns (uint256 value);
        function getSharesByValue(uint256 value) external view returns (uint256 shares);
        function getOracleDecimals() external view returns (uint8);
        function getOracle() external view returns (address);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    interface ISolvBTCYieldTokenOracle {
        function getNav(address erc20) external view returns (uint256);
        function navDecimals(address erc20) external view returns (uint8);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
    import "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
    import "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
    import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
    import "./utils/ERC3525TransferHelper.sol";
    import "./ISolvBTC.sol";
    import "./SolvBTCMultiAssetPool.sol";
    contract SolvBTC is ISolvBTC, ERC20Upgradeable, ReentrancyGuardUpgradeable, Ownable2StepUpgradeable, AccessControlUpgradeable {
        /// @custom:storage-location erc7201:solv.storage.SolvBTC
        struct SolvBTCStorage {
            address _solvBTCMultiAssetPool;
        }
        address public wrappedSftAddress;
        uint256 public wrappedSftSlot;
        address public navOracle;
        uint256 public holdingValueSftId;
        uint256[] internal _holdingEmptySftIds;
        // keccak256(abi.encode(uint256(keccak256("solv.storage.SolvBTC")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant SolvBTCStorageLocation = 0x25351088c72db31d4a47cbdabb12f8d9c124b300211236164ae2941317058400;
        bytes32 public constant SOLVBTC_MINTER_ROLE = keccak256(abi.encodePacked("SOLVBTC_MINTER"));
        bytes32 public constant SOLVBTC_POOL_BURNER_ROLE = keccak256(abi.encodePacked("SOLVBTC_POOL_BURNER"));
        event SetSolvBTCMultiAssetPool(address indexed solvBTCMultiAssetPool);
        /// @custom:oz-upgrades-unsafe-allow constructor
        constructor() {
            _disableInitializers();
        }
        function initialize(string memory name_, string memory symbol_) external virtual initializer {
            ERC20Upgradeable.__ERC20_init(name_, symbol_);
            ReentrancyGuardUpgradeable.__ReentrancyGuard_init();
        }
        function initializeV2(address solvBTCMultiAssetPool_) external virtual reinitializer(2) {
            require(msg.sender == 0x55C09707Fd7aFD670e82A62FaeE312903940013E, "SolvBTC: only owner");
            _transferOwnership(msg.sender);
            _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
            _setSolvBTCMultiAssetPool(solvBTCMultiAssetPool_);
            if (holdingValueSftId != 0) {
                ERC3525TransferHelper.doTransferOut(wrappedSftAddress, solvBTCMultiAssetPool(), holdingValueSftId);
            }
            wrappedSftAddress = address(0);
            wrappedSftSlot = 0;
            navOracle = address(0);
            holdingValueSftId = 0;
        }
        function supportsInterface(bytes4 interfaceId) public view virtual override(AccessControlUpgradeable, IERC165) returns (bool) {
            return 
                interfaceId == type(IERC3525Receiver).interfaceId || 
                interfaceId == type(IERC721Receiver).interfaceId || 
                interfaceId == type(IERC165).interfaceId ||
                super.supportsInterface(interfaceId);
        }
        function onERC3525Received(
            address, /* operator_ */
            uint256 /* fromSftId_ */,
            uint256 /* sftId_ */,
            uint256 /* value_ */,
            bytes calldata /* data_ */
        ) external virtual override returns (bytes4) {
            revert ERC3525NotReceivable(msg.sender);
        }
        function onERC721Received(
            address /* operator_ */, 
            address /* from_ */, 
            uint256 /* sftId_ */, 
            bytes calldata /* data_ */ 
        ) external virtual override returns (bytes4) {
            revert ERC721NotReceivable(msg.sender);
        }
        function mint(address account_, uint256 value_) external virtual nonReentrant onlyRole(SOLVBTC_MINTER_ROLE) {
            require(value_ > 0, "SolvBTC: mint value cannot be 0");
            _mint(account_, value_);
        }
        function burn(uint256 value_) external virtual nonReentrant onlyRole(SOLVBTC_MINTER_ROLE) {
            require(value_ > 0, "SolvBTC: burn value cannot be 0");
            _burn(msg.sender, value_);
        }
        function burn(address account_, uint256 value_) external virtual nonReentrant onlyRole(SOLVBTC_POOL_BURNER_ROLE) {
            require(value_ > 0, "SolvBTC: burn value cannot be 0");
            _burn(account_, value_);
        }
        function sweepEmptySftIds(address sft_, uint256 sweepAmount_) external virtual {
            uint256 length = _holdingEmptySftIds.length;
            for (uint256 i = 0; i < length && i < sweepAmount_; i++) {
                uint256 lastSftId = _holdingEmptySftIds[_holdingEmptySftIds.length - 1];
                ERC3525TransferHelper.doTransferOut(sft_, 0x000000000000000000000000000000000000dEaD, lastSftId);
                _holdingEmptySftIds.pop();
            }
            if (_holdingEmptySftIds.length == 0) {
                delete _holdingEmptySftIds;
            }
        }
        function _getSolvBTCStorage() private pure returns (SolvBTCStorage storage $) {
            assembly {
                $.slot := SolvBTCStorageLocation
            }
        }
        function solvBTCMultiAssetPool() public view virtual returns (address) {
            SolvBTCStorage storage $ = _getSolvBTCStorage();
            return $._solvBTCMultiAssetPool;
        }
        function _setSolvBTCMultiAssetPool(address solvBTCMultiAssetPool_) internal virtual {
            require(solvBTCMultiAssetPool_ != address(0), "SolvBTC: invalid solvBTCMultiAssetPool address");
            SolvBTCStorage storage $ = _getSolvBTCStorage();
            require($._solvBTCMultiAssetPool == address(0), "SolvBTC: solvBTCMultiAssetPool already set");
            $._solvBTCMultiAssetPool = solvBTCMultiAssetPool_;
            emit SetSolvBTCMultiAssetPool(solvBTCMultiAssetPool_);
        }
        uint256[45] private __gap;
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    import "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
    import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
    import "./access/AdminControlUpgradeable.sol";
    import "./utils/ERC3525TransferHelper.sol";
    import "./external/IERC3525.sol";
    import "./ISolvBTCMultiAssetPool.sol";
    import "./ISolvBTC.sol";
    contract SolvBTCMultiAssetPool is ISolvBTCMultiAssetPool, ReentrancyGuardUpgradeable, AdminControlUpgradeable {
        struct SftSlotInfo {
            uint256 holdingValueSftId;
            address erc20;
            bool depositAllowed;
            bool withdrawAllowed;
        }
        mapping(address => mapping(uint256 => SftSlotInfo)) internal _sftSlotInfos;
        event AddSftSlot(address indexed sft, uint256 indexed slot, address indexed erc20, uint256 holdingValueSftId);
        event SftSlotAllowedChanged(address indexed sft, uint256 indexed slot, bool depositAllowed, bool withdrawAllowed);
        event Deposit(
            address indexed owner, address indexed sft, uint256 indexed slot, address erc20, uint256 sftId, uint256 value
        );
        event Withdraw(
            address indexed owner, address indexed sft, uint256 indexed slot, address erc20, uint256 sftId, uint256 value
        );
        /// @custom:oz-upgrades-unsafe-allow constructor
        constructor() {
            _disableInitializers();
        }
        function initialize() external virtual initializer {
            AdminControlUpgradeable.__AdminControl_init(msg.sender);
            ReentrancyGuardUpgradeable.__ReentrancyGuard_init();
        }
        function deposit(address sft_, uint256 sftId_, uint256 value_) external virtual override nonReentrant {
            require(value_ > 0, "SolvBTCMultiAssetPool: deposit amount cannot be 0");
            require(msg.sender == IERC3525(sft_).ownerOf(sftId_), "SolvBTCMultiAssetPool: caller is not sft owner");
            uint256 slot = IERC3525(sft_).slotOf(sftId_);
            SftSlotInfo storage sftSlotInfo = _sftSlotInfos[sft_][slot];
            require(sftSlotInfo.depositAllowed, "SolvBTCMultiAssetPool: sft slot deposit not allowed");
            uint256 sftBalance = IERC3525(sft_).balanceOf(sftId_);
            if (value_ == sftBalance) {
                ERC3525TransferHelper.doTransferIn(sft_, msg.sender, sftId_);
                if (sftSlotInfo.holdingValueSftId == 0) {
                    sftSlotInfo.holdingValueSftId = sftId_;
                } else {
                    ERC3525TransferHelper.doTransfer(sft_, sftId_, sftSlotInfo.holdingValueSftId, value_);
                    ERC3525TransferHelper.doTransferOut(sft_, 0x000000000000000000000000000000000000dEaD, sftId_);
                }
            } else if (value_ < sftBalance) {
                if (sftSlotInfo.holdingValueSftId == 0) {
                    sftSlotInfo.holdingValueSftId = ERC3525TransferHelper.doTransferIn(sft_, sftId_, value_);
                } else {
                    ERC3525TransferHelper.doTransfer(sft_, sftId_, sftSlotInfo.holdingValueSftId, value_);
                }
            } else {
                revert("SolvBTCMultiAssetPool: deposit amount exceeds sft balance");
            }
            ISolvBTC(sftSlotInfo.erc20).mint(msg.sender, value_);
            emit Deposit(msg.sender, sft_, slot, sftSlotInfo.erc20, sftId_, value_);
        }
        function withdraw(address sft_, uint256 slot_, uint256 sftId_, uint256 value_)
            external
            virtual
            override
            nonReentrant
            returns (uint256 toSftId_)
        {
            require(value_ > 0, "SolvBTCMultiAssetPool: withdraw amount cannot be 0");
            SftSlotInfo storage sftSlotInfo = _sftSlotInfos[sft_][slot_];
            require(sftSlotInfo.withdrawAllowed, "SolvBTCMultiAssetPool: sft slot not allowed");
            uint256 sftSlotBalance = getSftSlotBalance(sft_, slot_);
            require(value_ <= sftSlotBalance, "SolvBTCMultiAssetPool: insufficient balance");
            ISolvBTC(sftSlotInfo.erc20).burn(msg.sender, value_);
            if (sftId_ == 0) {
                toSftId_ = ERC3525TransferHelper.doTransferOut(sft_, sftSlotInfo.holdingValueSftId, msg.sender, value_);
            } else {
                require(slot_ == IERC3525(sft_).slotOf(sftId_), "SolvBTCMultiAssetPool: slot not matched");
                require(msg.sender == IERC3525(sft_).ownerOf(sftId_), "SolvBTCMultiAssetPool: caller is not sft owner");
                ERC3525TransferHelper.doTransfer(sft_, sftSlotInfo.holdingValueSftId, sftId_, value_);
                toSftId_ = sftId_;
            }
            emit Withdraw(msg.sender, sft_, slot_, sftSlotInfo.erc20, toSftId_, value_);
        }
        function addSftSlotOnlyAdmin(address sft_, uint256 slot_, address erc20_, uint256 holdingValueSftId_)
            external
            virtual
            onlyAdmin
        {
            SftSlotInfo storage sftSlotInfo = _sftSlotInfos[sft_][slot_];
            require(sftSlotInfo.erc20 == address(0), "SolvBTCMultiAssetPool: sft slot already existed");
            require(
                IERC3525(sft_).valueDecimals() == IERC20Metadata(erc20_).decimals(),
                "SolvBTCMultiAssetPool: decimals not matched"
            );
            if (holdingValueSftId_ > 0) {
                require(IERC3525(sft_).slotOf(holdingValueSftId_) == slot_, "SolvBTCMultiAssetPool: slot not matched");
                require(
                    IERC3525(sft_).ownerOf(holdingValueSftId_) == address(this), "SolvBTCMultiAssetPool: sftId not owned"
                );
            }
            sftSlotInfo.holdingValueSftId = holdingValueSftId_;
            sftSlotInfo.erc20 = erc20_;
            sftSlotInfo.depositAllowed = true;
            sftSlotInfo.withdrawAllowed = true;
            emit AddSftSlot(sft_, slot_, erc20_, holdingValueSftId_);
        }
        function changeSftSlotAllowedOnlyAdmin(address sft_, uint256 slot_, bool depositAllowed_, bool withdrawAllowed_)
            external
            virtual
            onlyAdmin
        {
            SftSlotInfo storage sftSlotInfo = _sftSlotInfos[sft_][slot_];
            require(sftSlotInfo.erc20 != address(0), "SolvBTCMultiAssetPool: sft slot not existed");
            sftSlotInfo.depositAllowed = depositAllowed_;
            sftSlotInfo.withdrawAllowed = withdrawAllowed_;
            emit SftSlotAllowedChanged(sft_, slot_, depositAllowed_, withdrawAllowed_);
        }
        function isSftSlotDepositAllowed(address sft_, uint256 slot_) public view virtual override returns (bool) {
            return _sftSlotInfos[sft_][slot_].depositAllowed;
        }
        function isSftSlotWithdrawAllowed(address sft_, uint256 slot_) public view virtual override returns (bool) {
            return _sftSlotInfos[sft_][slot_].withdrawAllowed;
        }
        function getERC20(address sft_, uint256 slot_) public view virtual override returns (address) {
            return _sftSlotInfos[sft_][slot_].erc20;
        }
        function getHoldingValueSftId(address sft_, uint256 slot_) public view virtual override returns (uint256) {
            return _sftSlotInfos[sft_][slot_].holdingValueSftId;
        }
        function getSftSlotBalance(address sft_, uint256 slot_) public view virtual override returns (uint256) {
            SftSlotInfo storage sftSlotInfo = _sftSlotInfos[sft_][slot_];
            return sftSlotInfo.holdingValueSftId == 0 ? 0 : IERC3525(sft_).balanceOf(sftSlotInfo.holdingValueSftId);
        }
        uint256[49] private __gap;
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    import "./SolvBTC.sol";
    import "./ISolvBTCYieldToken.sol";
    import "./ISolvBTCYieldTokenOracle.sol";
    contract SolvBTCYieldToken is SolvBTC, ISolvBTCYieldToken {
        struct SolvBTCYieldTokenStorage {
            address _oracle;
        }
        // keccak256(abi.encode(uint256(keccak256("solv.storage.SolvBTCYieldToken")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant SolvBTCYieldTokenStorageLocation =
            0xf05073905b1e64f5ceda3673d2f3281ec4d80a5b81532923554d532211661500;
        event SetOracle(address indexed oracle);
        /// @custom:oz-upgrades-unsafe-allow constructor
        constructor() {
            _disableInitializers();
        }
        /**
         * @notice Get amount of underlying asset for a given amount of shares.
         */
        function getValueByShares(uint256 shares) external view virtual override returns (uint256 value) {
            uint256 currentNav = ISolvBTCYieldTokenOracle(getOracle()).getNav(address(this));
            return shares * currentNav / (10 ** decimals());
        }
        /**
         * @notice Get amount of shares for a given amount of underlying asset.
         */
        function getSharesByValue(uint256 value) external view virtual override returns (uint256 shares) {
            uint256 currentNav = ISolvBTCYieldTokenOracle(getOracle()).getNav(address(this));
            return currentNav == 0 ? 0 : (value * (10 ** decimals()) / currentNav);
        }
        function _getSolvBTCLYTStorage() private pure returns (SolvBTCYieldTokenStorage storage $) {
            assembly {
                $.slot := SolvBTCYieldTokenStorageLocation
            }
        }
        function getOracle() public view virtual override returns (address) {
            SolvBTCYieldTokenStorage storage $ = _getSolvBTCLYTStorage();
            return $._oracle;
        }
        function setOracle(address oracle_) external virtual onlyOwner {
            require(oracle_ != address(0), "SolvBTCYieldToken: invalid oracle address");
            SolvBTCYieldTokenStorage storage $ = _getSolvBTCLYTStorage();
            $._oracle = oracle_;
            emit SetOracle(oracle_);
        }
        function getOracleDecimals() external view returns (uint8) {
            return ISolvBTCYieldTokenOracle(getOracle()).navDecimals(address(this));
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
    abstract contract AdminControlUpgradeable is Initializable {
        event NewAdmin(address oldAdmin, address newAdmin);
        event NewPendingAdmin(address oldPendingAdmin, address newPendingAdmin);
        address public admin;
        address public pendingAdmin;
        modifier onlyAdmin() {
            require(msg.sender == admin, "only admin");
            _;
        }
        modifier onlyPendingAdmin() {
            require(msg.sender == pendingAdmin, "only pending admin");
            _;
        }
        function __AdminControl_init(address admin_) internal onlyInitializing {
            __AdminControl_init_unchained(admin_);
        }
        function __AdminControl_init_unchained(address admin_) internal onlyInitializing {
            admin = admin_;
            emit NewAdmin(address(0), admin_);
        }
        function transferAdmin(address newPendingAdmin_) external virtual onlyAdmin {
            emit NewPendingAdmin(pendingAdmin, newPendingAdmin_);
            pendingAdmin = newPendingAdmin_;        
        }
        function acceptAdmin() external virtual onlyPendingAdmin {
            emit NewAdmin(admin, pendingAdmin);
            admin = pendingAdmin;
            delete pendingAdmin;
        }
        uint256[48] private __gap;
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    import "./IERC721.sol";
    interface IERC3525 is IERC721 {
        function valueDecimals() external view returns (uint8);
        function balanceOf(uint256 tokenId) external view returns (uint256);
        function slotOf(uint256 tokenId) external view returns (uint256);
        function allowance(uint256 tokenId, address operator) external view returns (uint256);
        
        function approve(address operator, uint256 tokenId) external payable;
        function approve(uint256 tokenId, address operator, uint256 value) external payable;
        function transferFrom(uint256 fromTokenId, uint256 toTokenId, uint256 value) external payable;
        function transferFrom(uint256 fromTokenId, address to, uint256 value) external payable returns (uint256);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    interface IERC3525Receiver {
        function onERC3525Received(address operator, uint256 fromTokenId, uint256 toTokenId, uint256 value, bytes calldata data) external returns (bytes4);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    interface IERC721 {
        function balanceOf(address owner) external view returns (uint256);
        function ownerOf(uint256 tokenId) external view returns (address);
        function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);
        function getApproved(uint256 tokenId) external view returns (address);
        function isApprovedForAll(address owner, address operator) external view returns (bool);
        function approve(address approved, uint256 tokenId) external payable;
        function setApprovalForAll(address operator, bool approved) external;
        function transferFrom(address from, address to, uint256 tokenId) external payable;
        function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external payable;
        function safeTransferFrom(address from, address to, uint256 tokenId) external payable;
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    interface IERC721Receiver {
        function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.20;
    interface ERC721Interface {
        function approve(address to, uint256 tokenId) external;
        function transferFrom(address from, address to, uint256 tokenId) external;
        function safeTransferFrom(address from, address to, uint256 tokenId) external;
    }
    interface ERC3525Interface {
        function approve(uint256 tokenId, address to, uint256 allowance) external payable;
        function transferFrom(uint256 fromTokenId, uint256 toTokenId, uint256 value) external payable;
        function transferFrom(uint256 fromTokenId, address to, uint256 value) external payable returns (uint256); 
    }
    library ERC3525TransferHelper {
        function doApproveId(address underlying, address to, uint256 tokenId) internal {
            ERC721Interface token = ERC721Interface(underlying);
            token.approve(to, tokenId);
        }
        function doApproveValue(address underlying, uint256 tokenId, address to, uint256 allowance) internal {
            ERC3525Interface token = ERC3525Interface(underlying);
            token.approve(tokenId, to, allowance);
        }
        function doTransferIn(address underlying, address from, uint256 tokenId) internal {
            ERC721Interface token = ERC721Interface(underlying);
            token.transferFrom(from, address(this), tokenId);
        }
        
        function doSafeTransferIn(address underlying, address from, uint256 tokenId) internal {
            ERC721Interface token = ERC721Interface(underlying);
            token.safeTransferFrom(from, address(this), tokenId);
        }
        function doSafeTransferOut(address underlying, address to, uint256 tokenId) internal {
            ERC721Interface token = ERC721Interface(underlying);
            token.safeTransferFrom(address(this), to, tokenId);
        }
        function doTransferOut(address underlying, address to, uint256 tokenId) internal {
            ERC721Interface token = ERC721Interface(underlying);
            token.transferFrom(address(this), to, tokenId);
        }
        function doTransferIn(address underlying, uint256 fromTokenId, uint256 value) internal returns (uint256 newTokenId) {
            ERC3525Interface token = ERC3525Interface(underlying);
            return token.transferFrom(fromTokenId, address(this), value);
        }
        function doTransferOut(address underlying, uint256 fromTokenId, address to, uint256 value) internal returns (uint256 newTokenId) {
            ERC3525Interface token = ERC3525Interface(underlying);
            newTokenId = token.transferFrom(fromTokenId, to, value);
        }
        function doTransfer(address underlying, address from, address to, uint256 tokenId) internal {
            ERC721Interface token = ERC721Interface(underlying);
            token.transferFrom(from, to, tokenId);
        }
        function doTransfer(address underlying, uint256 fromTokenId, uint256 toTokenId, uint256 value) internal {
            ERC3525Interface token = ERC3525Interface(underlying);
            token.transferFrom(fromTokenId, toTokenId, value);
        }
    }