ETH Price: $1,877.58 (-0.03%)

Transaction Decoder

Block:
19547693 at Mar-30-2024 03:35:47 PM +UTC
Transaction Fee:
0.004173432 ETH $7.84
Gas Used:
122,748 Gas / 34 Gwei

Emitted Events:

102 ERC1967Proxy.0xbf5630c2adfa5e47b882a9ead657ffc6a22ce010513a3efac7245066bcad17dd( 0xbf5630c2adfa5e47b882a9ead657ffc6a22ce010513a3efac7245066bcad17dd, 00000000000000000000000000000000000000000000000000000000000027ea, 0000000000000000000000000000000000000000000000000000000000000040, 00000000000000000000000083bc7394738a7a084081af22eec0051908c0055c, 0000000000000000000000000000000000000000000000000000000000000000, 000000000000000000000000e563b9d0533fec743e0ff867b7f3d1460f88798c, 00000000000000000000000000000000000000000000000000000000000027ea, 000000000000000000000000e563b9d0533fec743e0ff867b7f3d1460f88798c, 000000000000000000000000000000000000000000000000037bbb2b8e9f8000, 0000000000000000000000000000000000000000000000000000000000000160, 00000000000000000000000000000000000000000000000000000000000a9a31, 0000000000000000000000000000000000000000000000000000000000000320, 0000000000000000000000000000000000000000000000000000000000000180, 000000000000000000000000e563b9d0533fec743e0ff867b7f3d1460f88798c, 0000000000000000000000000000000000000000000000000000000000000000, 0000000000000000000000000000000000000000000000000000000000000000 )

Account State Difference:

  Address   Before After State Difference Code
0x5fD9F732...b93e015Cf
(zkLink Nova: zkLink contract)
3,643.133807672361255042 Eth3,643.385687794161486653 Eth0.251880121800231611
(beaverbuild)
8.052485931912828988 Eth8.053138228117594 Eth0.000652296204765012
0xe563b9d0...60f88798c
0.296948782454385285 Eth
Nonce: 4
0.040895228654153674 Eth
Nonce: 5
0.256053553800231611

Execution Trace

ETH 0.251880121800231611 ERC1967Proxy.eb672419( )
  • ETH 0.251880121800231611 ZkLink.requestL2Transaction( _contractL2=0xe563b9d0533Fec743E0fF867B7F3D1460f88798c, _l2Value=251000000000000000, _calldata=0x, _l2GasLimit=694833, _l2GasPerPubdataByteLimit=800, _factoryDeps=[], _refundRecipient=0xe563b9d0533Fec743E0fF867B7F3D1460f88798c ) => ( canonicalTxHash=39868B5C944A701304D62DA3462F9E9DD5CB20BAAAEDF373FA1322AAF4A97030 )
    • ERC1967Proxy.STATICCALL( )
      • EthereumGateway.DELEGATECALL( )
        File 1 of 4: ERC1967Proxy
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
        pragma solidity ^0.8.20;
        import {Context} from "../utils/Context.sol";
        /**
         * @dev Contract module which provides a basic access control mechanism, where
         * there is an account (an owner) that can be granted exclusive access to
         * specific functions.
         *
         * 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);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1967.sol)
        pragma solidity ^0.8.20;
        /**
         * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
         */
        interface IERC1967 {
            /**
             * @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);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/BeaconProxy.sol)
        pragma solidity ^0.8.20;
        import {IBeacon} from "./IBeacon.sol";
        import {Proxy} from "../Proxy.sol";
        import {ERC1967Utils} from "../ERC1967/ERC1967Utils.sol";
        /**
         * @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;
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)
        pragma solidity ^0.8.20;
        /**
         * @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);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/UpgradeableBeacon.sol)
        pragma solidity ^0.8.20;
        import {IBeacon} from "./IBeacon.sol";
        import {Ownable} from "../../access/Ownable.sol";
        /**
         * @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);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Proxy.sol)
        pragma solidity ^0.8.20;
        import {Proxy} from "../Proxy.sol";
        import {ERC1967Utils} from "./ERC1967Utils.sol";
        /**
         * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
         * implementation address that can be changed. This address is stored in storage in the location specified by
         * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
         * implementation behind the proxy.
         */
        contract ERC1967Proxy is Proxy {
            /**
             * @dev Initializes the upgradeable proxy with an initial implementation specified by `implementation`.
             *
             * If `_data` is nonempty, it's used as data in a delegate call to `implementation`. This will typically be an
             * encoded function call, and allows initializing the storage of the proxy like a Solidity constructor.
             *
             * Requirements:
             *
             * - If `data` is empty, `msg.value` must be zero.
             */
            constructor(address implementation, bytes memory _data) payable {
                ERC1967Utils.upgradeToAndCall(implementation, _data);
            }
            /**
             * @dev Returns the current implementation address.
             *
             * 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.
             * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
             */
            function _implementation() internal view virtual override returns (address) {
                return ERC1967Utils.getImplementation();
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol)
        pragma solidity ^0.8.20;
        import {IBeacon} from "../beacon/IBeacon.sol";
        import {Address} from "../../utils/Address.sol";
        import {StorageSlot} from "../../utils/StorageSlot.sol";
        /**
         * @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();
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/Proxy.sol)
        pragma solidity ^0.8.20;
        /**
         * @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();
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/transparent/ProxyAdmin.sol)
        pragma solidity ^0.8.20;
        import {ITransparentUpgradeableProxy} from "./TransparentUpgradeableProxy.sol";
        import {Ownable} from "../../access/Ownable.sol";
        /**
         * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an
         * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}.
         */
        contract ProxyAdmin is Ownable {
            /**
             * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgrade(address)`
             * and `upgradeAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
             * while `upgradeAndCall` will invoke the `receive` function if the second argument is the empty byte string.
             * If the getter returns `"5.0.0"`, only `upgradeAndCall(address,bytes)` is present, and the second argument must
             * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
             * during an upgrade.
             */
            string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";
            /**
             * @dev Sets the initial owner who can perform upgrades.
             */
            constructor(address initialOwner) Ownable(initialOwner) {}
            /**
             * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation.
             * See {TransparentUpgradeableProxy-_dispatchUpgradeToAndCall}.
             *
             * Requirements:
             *
             * - This contract must be the admin of `proxy`.
             * - If `data` is empty, `msg.value` must be zero.
             */
            function upgradeAndCall(
                ITransparentUpgradeableProxy proxy,
                address implementation,
                bytes memory data
            ) public payable virtual onlyOwner {
                proxy.upgradeToAndCall{value: msg.value}(implementation, data);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/transparent/TransparentUpgradeableProxy.sol)
        pragma solidity ^0.8.20;
        import {ERC1967Utils} from "../ERC1967/ERC1967Utils.sol";
        import {ERC1967Proxy} from "../ERC1967/ERC1967Proxy.sol";
        import {IERC1967} from "../../interfaces/IERC1967.sol";
        import {ProxyAdmin} from "./ProxyAdmin.sol";
        /**
         * @dev Interface for {TransparentUpgradeableProxy}. In order to implement transparency, {TransparentUpgradeableProxy}
         * does not implement this interface directly, and its upgradeability mechanism is implemented by an internal dispatch
         * mechanism. The compiler is unaware that these functions are implemented by {TransparentUpgradeableProxy} and will not
         * include them in the ABI so this interface must be used to interact with it.
         */
        interface ITransparentUpgradeableProxy is IERC1967 {
            function upgradeToAndCall(address, bytes calldata) external payable;
        }
        /**
         * @dev This contract implements a proxy that is upgradeable through an associated {ProxyAdmin} instance.
         *
         * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
         * clashing], which can potentially be used in an attack, this contract uses the
         * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
         * things that go hand in hand:
         *
         * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
         * that call matches the {ITransparentUpgradeableProxy-upgradeToAndCall} function exposed by the proxy itself.
         * 2. If the admin calls the proxy, it can call the `upgradeToAndCall` function but any other call won't be forwarded to
         * the implementation. If the admin tries to call a function on the implementation it will fail with an error indicating
         * the proxy admin cannot fallback to the target implementation.
         *
         * These properties mean that the admin account can only be used for upgrading the proxy, so it's best if it's a
         * dedicated account that is not used for anything else. This will avoid headaches due to sudden errors when trying to
         * call a function from the proxy implementation. For this reason, the proxy deploys an instance of {ProxyAdmin} and
         * allows upgrades only if they come through it. You should think of the `ProxyAdmin` instance as the administrative
         * interface of the proxy, including the ability to change who can trigger upgrades by transferring ownership.
         *
         * NOTE: The real interface of this proxy is that defined in `ITransparentUpgradeableProxy`. This contract does not
         * inherit from that interface, and instead `upgradeToAndCall` is implicitly implemented using a custom dispatch
         * mechanism in `_fallback`. Consequently, the compiler will not produce an ABI for this contract. This is necessary to
         * fully implement transparency without decoding reverts caused by selector clashes between the proxy and the
         * implementation.
         *
         * NOTE: This proxy does not inherit from {Context} deliberately. The {ProxyAdmin} of this contract won't send a
         * meta-transaction in any way, and any other meta-transaction setup should be made in the implementation contract.
         *
         * IMPORTANT: This contract avoids unnecessary storage reads by setting the admin only during construction as an
         * immutable variable, preventing any changes thereafter. However, the admin slot defined in ERC-1967 can still be
         * overwritten by the implementation logic pointed to by this proxy. In such cases, the contract may end up in an
         * undesirable state where the admin slot is different from the actual admin.
         *
         * WARNING: It is not recommended to extend this contract to add additional external functions. If you do so, the
         * compiler will not check that there are no selector conflicts, due to the note above. A selector clash between any new
         * function and the functions declared in {ITransparentUpgradeableProxy} will be resolved in favor of the new one. This
         * could render the `upgradeToAndCall` function inaccessible, preventing upgradeability and compromising transparency.
         */
        contract TransparentUpgradeableProxy is ERC1967Proxy {
            // An immutable address for the admin to avoid unnecessary SLOADs before each call
            // at the expense of removing the ability to change the admin once it's set.
            // This is acceptable if the admin is always a ProxyAdmin instance or similar contract
            // with its own ability to transfer the permissions to another account.
            address private immutable _admin;
            /**
             * @dev The proxy caller is the current admin, and can't fallback to the proxy target.
             */
            error ProxyDeniedAdminAccess();
            /**
             * @dev Initializes an upgradeable proxy managed by an instance of a {ProxyAdmin} with an `initialOwner`,
             * backed by the implementation at `_logic`, and optionally initialized with `_data` as explained in
             * {ERC1967Proxy-constructor}.
             */
            constructor(address _logic, address initialOwner, bytes memory _data) payable ERC1967Proxy(_logic, _data) {
                _admin = address(new ProxyAdmin(initialOwner));
                // Set the storage value and emit an event for ERC-1967 compatibility
                ERC1967Utils.changeAdmin(_proxyAdmin());
            }
            /**
             * @dev Returns the admin of this proxy.
             */
            function _proxyAdmin() internal virtual returns (address) {
                return _admin;
            }
            /**
             * @dev If caller is the admin process the call internally, otherwise transparently fallback to the proxy behavior.
             */
            function _fallback() internal virtual override {
                if (msg.sender == _proxyAdmin()) {
                    if (msg.sig != ITransparentUpgradeableProxy.upgradeToAndCall.selector) {
                        revert ProxyDeniedAdminAccess();
                    } else {
                        _dispatchUpgradeToAndCall();
                    }
                } else {
                    super._fallback();
                }
            }
            /**
             * @dev Upgrade the implementation of the proxy. See {ERC1967Utils-upgradeToAndCall}.
             *
             * Requirements:
             *
             * - If `data` is empty, `msg.value` must be zero.
             */
            function _dispatchUpgradeToAndCall() private {
                (address newImplementation, bytes memory data) = abi.decode(msg.data[4:], (address, bytes));
                ERC1967Utils.upgradeToAndCall(newImplementation, data);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)
        pragma solidity ^0.8.20;
        /**
         * @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();
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
        pragma solidity ^0.8.20;
        /**
         * @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;
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)
        // This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
        pragma solidity ^0.8.20;
        /**
         * @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
                }
            }
        }
        

        File 2 of 4: ZkLink
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
        pragma solidity ^0.8.0;
        import "../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.
         *
         * By default, the owner account will be the one that deploys the contract. This
         * can later be changed with {transferOwnership}.
         *
         * This module is used through inheritance. It will make available the modifier
         * `onlyOwner`, which can be applied to your functions to restrict their use to
         * the owner.
         */
        abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
            address private _owner;
            event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
            /**
             * @dev Initializes the contract setting the deployer as the initial owner.
             */
            function __Ownable_init() internal onlyInitializing {
                __Ownable_init_unchained();
            }
            function __Ownable_init_unchained() internal onlyInitializing {
                _transferOwnership(_msgSender());
            }
            /**
             * @dev Throws if called by any account other than the owner.
             */
            modifier onlyOwner() {
                _checkOwner();
                _;
            }
            /**
             * @dev Returns the address of the current owner.
             */
            function owner() public view virtual returns (address) {
                return _owner;
            }
            /**
             * @dev Throws if the sender is not the owner.
             */
            function _checkOwner() internal view virtual {
                require(owner() == _msgSender(), "Ownable: caller is not the owner");
            }
            /**
             * @dev Leaves the contract without owner. It will not be possible to call
             * `onlyOwner` functions. Can only be called by the current owner.
             *
             * NOTE: Renouncing ownership will leave the contract without an owner,
             * thereby disabling any functionality that is only available to the owner.
             */
            function renounceOwnership() public virtual onlyOwner {
                _transferOwnership(address(0));
            }
            /**
             * @dev Transfers ownership of the contract to a new account (`newOwner`).
             * Can only be called by the current owner.
             */
            function transferOwnership(address newOwner) public virtual onlyOwner {
                require(newOwner != address(0), "Ownable: new owner is the zero address");
                _transferOwnership(newOwner);
            }
            /**
             * @dev Transfers ownership of the contract to a new account (`newOwner`).
             * Internal function without access restriction.
             */
            function _transferOwnership(address newOwner) internal virtual {
                address oldOwner = _owner;
                _owner = newOwner;
                emit OwnershipTransferred(oldOwner, newOwner);
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[49] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
         * proxy whose upgrades are fully controlled by the current implementation.
         */
        interface IERC1822ProxiableUpgradeable {
            /**
             * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
             * address.
             *
             * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
             * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
             * function revert if invoked through a proxy.
             */
            function proxiableUUID() external view returns (bytes32);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC1967.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
         *
         * _Available since v4.8.3._
         */
        interface IERC1967Upgradeable {
            /**
             * @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);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev This is the interface that {BeaconProxy} expects of its beacon.
         */
        interface IBeaconUpgradeable {
            /**
             * @dev Must return an address that can be used as a delegate call target.
             *
             * {BeaconProxy} will check that this address is a contract.
             */
            function implementation() external view returns (address);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (proxy/ERC1967/ERC1967Upgrade.sol)
        pragma solidity ^0.8.2;
        import "../beacon/IBeaconUpgradeable.sol";
        import "../../interfaces/IERC1967Upgradeable.sol";
        import "../../interfaces/draft-IERC1822Upgradeable.sol";
        import "../../utils/AddressUpgradeable.sol";
        import "../../utils/StorageSlotUpgradeable.sol";
        import {Initializable} from "../utils/Initializable.sol";
        /**
         * @dev This abstract contract provides getters and event emitting update functions for
         * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
         *
         * _Available since v4.1._
         */
        abstract contract ERC1967UpgradeUpgradeable is Initializable, IERC1967Upgradeable {
            // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
            bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
            /**
             * @dev Storage slot with the address of the current implementation.
             * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
             * validated in the constructor.
             */
            bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
            function __ERC1967Upgrade_init() internal onlyInitializing {
            }
            function __ERC1967Upgrade_init_unchained() internal onlyInitializing {
            }
            /**
             * @dev Returns the current implementation address.
             */
            function _getImplementation() internal view returns (address) {
                return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;
            }
            /**
             * @dev Stores a new address in the EIP1967 implementation slot.
             */
            function _setImplementation(address newImplementation) private {
                require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract");
                StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
            }
            /**
             * @dev Perform implementation upgrade
             *
             * Emits an {Upgraded} event.
             */
            function _upgradeTo(address newImplementation) internal {
                _setImplementation(newImplementation);
                emit Upgraded(newImplementation);
            }
            /**
             * @dev Perform implementation upgrade with additional setup call.
             *
             * Emits an {Upgraded} event.
             */
            function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal {
                _upgradeTo(newImplementation);
                if (data.length > 0 || forceCall) {
                    AddressUpgradeable.functionDelegateCall(newImplementation, data);
                }
            }
            /**
             * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
             *
             * Emits an {Upgraded} event.
             */
            function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal {
                // Upgrades from old implementations will perform a rollback test. This test requires the new
                // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
                // this special case will break upgrade paths from old UUPS implementation to new ones.
                if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {
                    _setImplementation(newImplementation);
                } else {
                    try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                        require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
                    } catch {
                        revert("ERC1967Upgrade: new implementation is not UUPS");
                    }
                    _upgradeToAndCall(newImplementation, data, forceCall);
                }
            }
            /**
             * @dev Storage slot with the admin of the contract.
             * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
             * validated in the constructor.
             */
            bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
            /**
             * @dev Returns the current admin.
             */
            function _getAdmin() internal view returns (address) {
                return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;
            }
            /**
             * @dev Stores a new address in the EIP1967 admin slot.
             */
            function _setAdmin(address newAdmin) private {
                require(newAdmin != address(0), "ERC1967: new admin is the zero address");
                StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
            }
            /**
             * @dev Changes the admin of the proxy.
             *
             * Emits an {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 bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
             */
            bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
            /**
             * @dev Returns the current beacon.
             */
            function _getBeacon() internal view returns (address) {
                return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;
            }
            /**
             * @dev Stores a new beacon in the EIP1967 beacon slot.
             */
            function _setBeacon(address newBeacon) private {
                require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract");
                require(
                    AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),
                    "ERC1967: beacon implementation is not a contract"
                );
                StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;
            }
            /**
             * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
             * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
             *
             * Emits a {BeaconUpgraded} event.
             */
            function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal {
                _setBeacon(newBeacon);
                emit BeaconUpgraded(newBeacon);
                if (data.length > 0 || forceCall) {
                    AddressUpgradeable.functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);
                }
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
        pragma solidity ^0.8.2;
        import "../../utils/AddressUpgradeable.sol";
        /**
         * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
         * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
         * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
         * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
         *
         * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
         * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
         * case an upgrade adds a module that needs to be initialized.
         *
         * For example:
         *
         * [.hljs-theme-light.nopadding]
         * ```solidity
         * contract MyToken is ERC20Upgradeable {
         *     function initialize() initializer public {
         *         __ERC20_init("MyToken", "MTK");
         *     }
         * }
         *
         * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
         *     function initializeV2() reinitializer(2) public {
         *         __ERC20Permit_init("MyToken");
         *     }
         * }
         * ```
         *
         * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
         * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
         *
         * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
         * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
         *
         * [CAUTION]
         * ====
         * Avoid leaving a contract uninitialized.
         *
         * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
         * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
         * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
         *
         * [.hljs-theme-light.nopadding]
         * ```
         * /// @custom:oz-upgrades-unsafe-allow constructor
         * constructor() {
         *     _disableInitializers();
         * }
         * ```
         * ====
         */
        abstract contract Initializable {
            /**
             * @dev Indicates that the contract has been initialized.
             * @custom:oz-retyped-from bool
             */
            uint8 private _initialized;
            /**
             * @dev Indicates that the contract is in the process of being initialized.
             */
            bool private _initializing;
            /**
             * @dev Triggered when the contract has been initialized or reinitialized.
             */
            event Initialized(uint8 version);
            /**
             * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
             * `onlyInitializing` functions can be used to initialize parent contracts.
             *
             * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
             * constructor.
             *
             * Emits an {Initialized} event.
             */
            modifier initializer() {
                bool isTopLevelCall = !_initializing;
                require(
                    (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
                    "Initializable: contract is already initialized"
                );
                _initialized = 1;
                if (isTopLevelCall) {
                    _initializing = true;
                }
                _;
                if (isTopLevelCall) {
                    _initializing = false;
                    emit Initialized(1);
                }
            }
            /**
             * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
             * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
             * used to initialize parent contracts.
             *
             * A reinitializer may be used after the original initialization step. This is essential to configure modules that
             * are added through upgrades and that require initialization.
             *
             * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
             * cannot be nested. If one is invoked in the context of another, execution will revert.
             *
             * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
             * a contract, executing them in the right order is up to the developer or operator.
             *
             * WARNING: setting the version to 255 will prevent any future reinitialization.
             *
             * Emits an {Initialized} event.
             */
            modifier reinitializer(uint8 version) {
                require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
                _initialized = version;
                _initializing = true;
                _;
                _initializing = false;
                emit Initialized(version);
            }
            /**
             * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
             * {initializer} and {reinitializer} modifiers, directly or indirectly.
             */
            modifier onlyInitializing() {
                require(_initializing, "Initializable: contract is not initializing");
                _;
            }
            /**
             * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
             * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
             * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
             * through proxies.
             *
             * Emits an {Initialized} event the first time it is successfully executed.
             */
            function _disableInitializers() internal virtual {
                require(!_initializing, "Initializable: contract is initializing");
                if (_initialized != type(uint8).max) {
                    _initialized = type(uint8).max;
                    emit Initialized(type(uint8).max);
                }
            }
            /**
             * @dev Returns the highest version that has been initialized. See {reinitializer}.
             */
            function _getInitializedVersion() internal view returns (uint8) {
                return _initialized;
            }
            /**
             * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
             */
            function _isInitializing() internal view returns (bool) {
                return _initializing;
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/UUPSUpgradeable.sol)
        pragma solidity ^0.8.0;
        import "../../interfaces/draft-IERC1822Upgradeable.sol";
        import "../ERC1967/ERC1967UpgradeUpgradeable.sol";
        import {Initializable} from "./Initializable.sol";
        /**
         * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
         * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
         *
         * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
         * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
         * `UUPSUpgradeable` with a custom implementation of upgrades.
         *
         * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
         *
         * _Available since v4.1._
         */
        abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {
            /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
            address private immutable __self = address(this);
            /**
             * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
             * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
             * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
             * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
             * fail.
             */
            modifier onlyProxy() {
                require(address(this) != __self, "Function must be called through delegatecall");
                require(_getImplementation() == __self, "Function must be called through active proxy");
                _;
            }
            /**
             * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
             * callable on the implementing contract but not through proxies.
             */
            modifier notDelegated() {
                require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall");
                _;
            }
            function __UUPSUpgradeable_init() internal onlyInitializing {
            }
            function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
            }
            /**
             * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
             * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
             *
             * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
             * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
             * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
             */
            function proxiableUUID() external view virtual override notDelegated returns (bytes32) {
                return _IMPLEMENTATION_SLOT;
            }
            /**
             * @dev Upgrade the implementation of the proxy to `newImplementation`.
             *
             * Calls {_authorizeUpgrade}.
             *
             * Emits an {Upgraded} event.
             *
             * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
             */
            function upgradeTo(address newImplementation) public virtual onlyProxy {
                _authorizeUpgrade(newImplementation);
                _upgradeToAndCallUUPS(newImplementation, new bytes(0), false);
            }
            /**
             * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
             * encoded in `data`.
             *
             * Calls {_authorizeUpgrade}.
             *
             * Emits an {Upgraded} event.
             *
             * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
             */
            function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
                _authorizeUpgrade(newImplementation);
                _upgradeToAndCallUUPS(newImplementation, data, true);
            }
            /**
             * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
             * {upgradeTo} and {upgradeToAndCall}.
             *
             * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
             *
             * ```solidity
             * function _authorizeUpgrade(address) internal override onlyOwner {}
             * ```
             */
            function _authorizeUpgrade(address newImplementation) internal virtual;
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)
        pragma solidity ^0.8.0;
        import "../utils/ContextUpgradeable.sol";
        import {Initializable} from "../proxy/utils/Initializable.sol";
        /**
         * @dev Contract module which allows children to implement an emergency stop
         * mechanism that can be triggered by an authorized account.
         *
         * This module is used through inheritance. It will make available the
         * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
         * the functions of your contract. Note that they will not be pausable by
         * simply including this module, only once the modifiers are put in place.
         */
        abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
            /**
             * @dev Emitted when the pause is triggered by `account`.
             */
            event Paused(address account);
            /**
             * @dev Emitted when the pause is lifted by `account`.
             */
            event Unpaused(address account);
            bool private _paused;
            /**
             * @dev Initializes the contract in unpaused state.
             */
            function __Pausable_init() internal onlyInitializing {
                __Pausable_init_unchained();
            }
            function __Pausable_init_unchained() internal onlyInitializing {
                _paused = false;
            }
            /**
             * @dev Modifier to make a function callable only when the contract is not paused.
             *
             * Requirements:
             *
             * - The contract must not be paused.
             */
            modifier whenNotPaused() {
                _requireNotPaused();
                _;
            }
            /**
             * @dev Modifier to make a function callable only when the contract is paused.
             *
             * Requirements:
             *
             * - The contract must be paused.
             */
            modifier whenPaused() {
                _requirePaused();
                _;
            }
            /**
             * @dev Returns true if the contract is paused, and false otherwise.
             */
            function paused() public view virtual returns (bool) {
                return _paused;
            }
            /**
             * @dev Throws if the contract is paused.
             */
            function _requireNotPaused() internal view virtual {
                require(!paused(), "Pausable: paused");
            }
            /**
             * @dev Throws if the contract is not paused.
             */
            function _requirePaused() internal view virtual {
                require(paused(), "Pausable: not paused");
            }
            /**
             * @dev Triggers stopped state.
             *
             * Requirements:
             *
             * - The contract must not be paused.
             */
            function _pause() internal virtual whenNotPaused {
                _paused = true;
                emit Paused(_msgSender());
            }
            /**
             * @dev Returns to normal state.
             *
             * Requirements:
             *
             * - The contract must be paused.
             */
            function _unpause() internal virtual whenPaused {
                _paused = false;
                emit Unpaused(_msgSender());
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[49] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
        pragma solidity ^0.8.0;
        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;
            uint256 private _status;
            function __ReentrancyGuard_init() internal onlyInitializing {
                __ReentrancyGuard_init_unchained();
            }
            function __ReentrancyGuard_init_unchained() internal onlyInitializing {
                _status = _NOT_ENTERED;
            }
            /**
             * @dev Prevents a contract from calling itself, directly or indirectly.
             * Calling a `nonReentrant` function from another `nonReentrant`
             * function is not supported. It is possible to prevent this from happening
             * by making the `nonReentrant` function external, and making it call a
             * `private` function that does the actual work.
             */
            modifier nonReentrant() {
                _nonReentrantBefore();
                _;
                _nonReentrantAfter();
            }
            function _nonReentrantBefore() private {
                // On the first call to nonReentrant, _status will be _NOT_ENTERED
                require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
                // Any calls to nonReentrant after this point will fail
                _status = _ENTERED;
            }
            function _nonReentrantAfter() private {
                // By storing the original value once again, a refund is triggered (see
                // https://eips.ethereum.org/EIPS/eip-2200)
                _status = _NOT_ENTERED;
            }
            /**
             * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
             * `nonReentrant` function in the call stack.
             */
            function _reentrancyGuardEntered() internal view returns (bool) {
                return _status == _ENTERED;
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[49] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
        pragma solidity ^0.8.1;
        /**
         * @dev Collection of functions related to the address type
         */
        library AddressUpgradeable {
            /**
             * @dev Returns true if `account` is a contract.
             *
             * [IMPORTANT]
             * ====
             * It is unsafe to assume that an address for which this function returns
             * false is an externally-owned account (EOA) and not a contract.
             *
             * Among others, `isContract` will return false for the following
             * types of addresses:
             *
             *  - an externally-owned account
             *  - a contract in construction
             *  - an address where a contract will be created
             *  - an address where a contract lived, but was destroyed
             *
             * Furthermore, `isContract` will also return true if the target contract within
             * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
             * which only has an effect at the end of a transaction.
             * ====
             *
             * [IMPORTANT]
             * ====
             * You shouldn't rely on `isContract` to protect against flash loan attacks!
             *
             * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
             * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
             * constructor.
             * ====
             */
            function isContract(address account) internal view returns (bool) {
                // This method relies on extcodesize/address.code.length, which returns 0
                // for contracts in construction, since the code is only stored at the end
                // of the constructor execution.
                return account.code.length > 0;
            }
            /**
             * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
             * `recipient`, forwarding all available gas and reverting on errors.
             *
             * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
             * of certain opcodes, possibly making contracts go over the 2300 gas limit
             * imposed by `transfer`, making them unable to receive funds via
             * `transfer`. {sendValue} removes this limitation.
             *
             * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
             *
             * IMPORTANT: because control is transferred to `recipient`, care must be
             * taken to not create reentrancy vulnerabilities. Consider using
             * {ReentrancyGuard} or the
             * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
             */
            function sendValue(address payable recipient, uint256 amount) internal {
                require(address(this).balance >= amount, "Address: insufficient balance");
                (bool success, ) = recipient.call{value: amount}("");
                require(success, "Address: unable to send value, recipient may have reverted");
            }
            /**
             * @dev Performs a Solidity function call using a low level `call`. A
             * plain `call` is an unsafe replacement for a function call: use this
             * function instead.
             *
             * If `target` reverts with a revert reason, it is bubbled up by this
             * function (like regular Solidity function calls).
             *
             * Returns the raw returned data. To convert to the expected return value,
             * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
             *
             * Requirements:
             *
             * - `target` must be a contract.
             * - calling `target` with `data` must not revert.
             *
             * _Available since v3.1._
             */
            function functionCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionCallWithValue(target, data, 0, "Address: low-level call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
             * `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, 0, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but also transferring `value` wei to `target`.
             *
             * Requirements:
             *
             * - the calling contract must have an ETH balance of at least `value`.
             * - the called Solidity function must be `payable`.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
                return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
            }
            /**
             * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
             * with `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(address(this).balance >= value, "Address: insufficient balance for call");
                (bool success, bytes memory returndata) = target.call{value: value}(data);
                return verifyCallResultFromTarget(target, success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
                return functionStaticCall(target, data, "Address: low-level static call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal view returns (bytes memory) {
                (bool success, bytes memory returndata) = target.staticcall(data);
                return verifyCallResultFromTarget(target, success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionDelegateCall(target, data, "Address: low-level delegate call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                (bool success, bytes memory returndata) = target.delegatecall(data);
                return verifyCallResultFromTarget(target, success, returndata, errorMessage);
            }
            /**
             * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
             * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
             *
             * _Available since v4.8._
             */
            function verifyCallResultFromTarget(
                address target,
                bool success,
                bytes memory returndata,
                string memory errorMessage
            ) internal view returns (bytes memory) {
                if (success) {
                    if (returndata.length == 0) {
                        // only check isContract if the call was successful and the return data is empty
                        // otherwise we already know that it was a contract
                        require(isContract(target), "Address: call to non-contract");
                    }
                    return returndata;
                } else {
                    _revert(returndata, errorMessage);
                }
            }
            /**
             * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
             * revert reason or using the provided one.
             *
             * _Available since v4.3._
             */
            function verifyCallResult(
                bool success,
                bytes memory returndata,
                string memory errorMessage
            ) internal pure returns (bytes memory) {
                if (success) {
                    return returndata;
                } else {
                    _revert(returndata, errorMessage);
                }
            }
            function _revert(bytes memory returndata, string memory errorMessage) private pure {
                // Look for revert reason and bubble it up if present
                if (returndata.length > 0) {
                    // The easiest way to bubble the revert reason is using memory via assembly
                    /// @solidity memory-safe-assembly
                    assembly {
                        let returndata_size := mload(returndata)
                        revert(add(32, returndata), returndata_size)
                    }
                } else {
                    revert(errorMessage);
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
        pragma solidity ^0.8.0;
        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;
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
        // This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
        pragma solidity ^0.8.0;
        /**
         * @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(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
         *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
         *     }
         * }
         * ```
         *
         * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
         * _Available since v4.9 for `string`, `bytes`._
         */
        library StorageSlotUpgradeable {
            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
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev Standard math utilities missing in the Solidity language.
         */
        library Math {
            enum Rounding {
                Down, // Toward negative infinity
                Up, // Toward infinity
                Zero // Toward zero
            }
            /**
             * @dev Returns the largest of two numbers.
             */
            function max(uint256 a, uint256 b) internal pure returns (uint256) {
                return a > b ? a : b;
            }
            /**
             * @dev Returns the smallest of two numbers.
             */
            function min(uint256 a, uint256 b) internal pure returns (uint256) {
                return a < b ? a : b;
            }
            /**
             * @dev Returns the average of two numbers. The result is rounded towards
             * zero.
             */
            function average(uint256 a, uint256 b) internal pure returns (uint256) {
                // (a + b) / 2 can overflow.
                return (a & b) + (a ^ b) / 2;
            }
            /**
             * @dev Returns the ceiling of the division of two numbers.
             *
             * This differs from standard division with `/` in that it rounds up instead
             * of rounding down.
             */
            function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
                // (a + b - 1) / b can overflow on addition, so we distribute.
                return a == 0 ? 0 : (a - 1) / b + 1;
            }
            /**
             * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
             * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
             * with further edits by Uniswap Labs also under MIT license.
             */
            function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
                unchecked {
                    // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
                    // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
                    // variables such that product = prod1 * 2^256 + prod0.
                    uint256 prod0; // Least significant 256 bits of the product
                    uint256 prod1; // Most significant 256 bits of the product
                    assembly {
                        let mm := mulmod(x, y, not(0))
                        prod0 := mul(x, y)
                        prod1 := sub(sub(mm, prod0), lt(mm, prod0))
                    }
                    // Handle non-overflow cases, 256 by 256 division.
                    if (prod1 == 0) {
                        // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                        // The surrounding unchecked block does not change this fact.
                        // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                        return prod0 / denominator;
                    }
                    // Make sure the result is less than 2^256. Also prevents denominator == 0.
                    require(denominator > prod1, "Math: mulDiv overflow");
                    ///////////////////////////////////////////////
                    // 512 by 256 division.
                    ///////////////////////////////////////////////
                    // Make division exact by subtracting the remainder from [prod1 prod0].
                    uint256 remainder;
                    assembly {
                        // Compute remainder using mulmod.
                        remainder := mulmod(x, y, denominator)
                        // Subtract 256 bit number from 512 bit number.
                        prod1 := sub(prod1, gt(remainder, prod0))
                        prod0 := sub(prod0, remainder)
                    }
                    // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
                    // See https://cs.stackexchange.com/q/138556/92363.
                    // Does not overflow because the denominator cannot be zero at this stage in the function.
                    uint256 twos = denominator & (~denominator + 1);
                    assembly {
                        // Divide denominator by twos.
                        denominator := div(denominator, twos)
                        // Divide [prod1 prod0] by twos.
                        prod0 := div(prod0, twos)
                        // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                        twos := add(div(sub(0, twos), twos), 1)
                    }
                    // Shift in bits from prod1 into prod0.
                    prod0 |= prod1 * twos;
                    // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
                    // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
                    // four bits. That is, denominator * inv = 1 mod 2^4.
                    uint256 inverse = (3 * denominator) ^ 2;
                    // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
                    // in modular arithmetic, doubling the correct bits in each step.
                    inverse *= 2 - denominator * inverse; // inverse mod 2^8
                    inverse *= 2 - denominator * inverse; // inverse mod 2^16
                    inverse *= 2 - denominator * inverse; // inverse mod 2^32
                    inverse *= 2 - denominator * inverse; // inverse mod 2^64
                    inverse *= 2 - denominator * inverse; // inverse mod 2^128
                    inverse *= 2 - denominator * inverse; // inverse mod 2^256
                    // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
                    // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
                    // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
                    // is no longer required.
                    result = prod0 * inverse;
                    return result;
                }
            }
            /**
             * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
             */
            function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
                uint256 result = mulDiv(x, y, denominator);
                if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
                    result += 1;
                }
                return result;
            }
            /**
             * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
             *
             * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
             */
            function sqrt(uint256 a) internal pure returns (uint256) {
                if (a == 0) {
                    return 0;
                }
                // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
                //
                // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
                // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
                //
                // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
                // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
                // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
                //
                // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
                uint256 result = 1 << (log2(a) >> 1);
                // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
                // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
                // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
                // into the expected uint128 result.
                unchecked {
                    result = (result + a / result) >> 1;
                    result = (result + a / result) >> 1;
                    result = (result + a / result) >> 1;
                    result = (result + a / result) >> 1;
                    result = (result + a / result) >> 1;
                    result = (result + a / result) >> 1;
                    result = (result + a / result) >> 1;
                    return min(result, a / result);
                }
            }
            /**
             * @notice Calculates sqrt(a), following the selected rounding direction.
             */
            function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
                unchecked {
                    uint256 result = sqrt(a);
                    return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
                }
            }
            /**
             * @dev Return the log in base 2, rounded down, of a positive value.
             * Returns 0 if given 0.
             */
            function log2(uint256 value) internal pure returns (uint256) {
                uint256 result = 0;
                unchecked {
                    if (value >> 128 > 0) {
                        value >>= 128;
                        result += 128;
                    }
                    if (value >> 64 > 0) {
                        value >>= 64;
                        result += 64;
                    }
                    if (value >> 32 > 0) {
                        value >>= 32;
                        result += 32;
                    }
                    if (value >> 16 > 0) {
                        value >>= 16;
                        result += 16;
                    }
                    if (value >> 8 > 0) {
                        value >>= 8;
                        result += 8;
                    }
                    if (value >> 4 > 0) {
                        value >>= 4;
                        result += 4;
                    }
                    if (value >> 2 > 0) {
                        value >>= 2;
                        result += 2;
                    }
                    if (value >> 1 > 0) {
                        result += 1;
                    }
                }
                return result;
            }
            /**
             * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
             * Returns 0 if given 0.
             */
            function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
                unchecked {
                    uint256 result = log2(value);
                    return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
                }
            }
            /**
             * @dev Return the log in base 10, rounded down, of a positive value.
             * Returns 0 if given 0.
             */
            function log10(uint256 value) internal pure returns (uint256) {
                uint256 result = 0;
                unchecked {
                    if (value >= 10 ** 64) {
                        value /= 10 ** 64;
                        result += 64;
                    }
                    if (value >= 10 ** 32) {
                        value /= 10 ** 32;
                        result += 32;
                    }
                    if (value >= 10 ** 16) {
                        value /= 10 ** 16;
                        result += 16;
                    }
                    if (value >= 10 ** 8) {
                        value /= 10 ** 8;
                        result += 8;
                    }
                    if (value >= 10 ** 4) {
                        value /= 10 ** 4;
                        result += 4;
                    }
                    if (value >= 10 ** 2) {
                        value /= 10 ** 2;
                        result += 2;
                    }
                    if (value >= 10 ** 1) {
                        result += 1;
                    }
                }
                return result;
            }
            /**
             * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
             * Returns 0 if given 0.
             */
            function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
                unchecked {
                    uint256 result = log10(value);
                    return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
                }
            }
            /**
             * @dev Return the log in base 256, rounded down, of a positive value.
             * Returns 0 if given 0.
             *
             * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
             */
            function log256(uint256 value) internal pure returns (uint256) {
                uint256 result = 0;
                unchecked {
                    if (value >> 128 > 0) {
                        value >>= 128;
                        result += 16;
                    }
                    if (value >> 64 > 0) {
                        value >>= 64;
                        result += 8;
                    }
                    if (value >> 32 > 0) {
                        value >>= 32;
                        result += 4;
                    }
                    if (value >> 16 > 0) {
                        value >>= 16;
                        result += 2;
                    }
                    if (value >> 8 > 0) {
                        result += 1;
                    }
                }
                return result;
            }
            /**
             * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
             * Returns 0 if given 0.
             */
            function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
                unchecked {
                    uint256 result = log256(value);
                    return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
                }
            }
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        interface IGateway {
            /// @return Remote gateway
            function getRemoteGateway() external view returns (address);
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        import {IGateway} from "./IGateway.sol";
        interface IL2Gateway is IGateway {
            /// @notice Send message to remote gateway
            /// @param _value The msg value
            /// @param _callData The call data
            function sendMessage(uint256 _value, bytes calldata _callData) external payable;
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        /// @title ZkLink interface contract
        /// @author zk.link
        interface IZkLink {
            /// @notice Send l2 requests sync status to primary chain
            /// @param _newTotalSyncedPriorityTxs New sync point
            function syncL2Requests(uint256 _newTotalSyncedPriorityTxs) external payable;
            /// @notice Receive batch root from primary chain
            /// @param _batchNumber The batch number
            /// @param _l2LogsRootHash The L2 to L1 log root hash
            /// @param _forwardEthAmount The forward eth amount
            function syncBatchRoot(uint256 _batchNumber, bytes32 _l2LogsRootHash, uint256 _forwardEthAmount) external payable;
            /// @notice Receive l2 tx hash from primary chain
            /// @param _l2TxHash The l2 tx hash on local chain
            /// @param _primaryChainL2TxHash The l2 tx hash on primary chain
            function syncL2TxHash(bytes32 _l2TxHash, bytes32 _primaryChainL2TxHash) external;
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
        import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
        import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
        import {PausableUpgradeable} from "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";
        import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
        import {AddressAliasHelper} from "./zksync/l1-contracts/vendor/AddressAliasHelper.sol";
        import {IZkLink} from "./interfaces/IZkLink.sol";
        import {IL2Gateway} from "./interfaces/IL2Gateway.sol";
        import {IMailbox, TxStatus} from "./zksync/l1-contracts/zksync/interfaces/IMailbox.sol";
        import {IAdmin} from "./zksync/l1-contracts/zksync/interfaces/IAdmin.sol";
        import {IZkSync} from "./zksync/l1-contracts/zksync/interfaces/IZkSync.sol";
        import {Merkle} from "./zksync/l1-contracts/zksync/libraries/Merkle.sol";
        import {TransactionValidator} from "./zksync/l1-contracts/zksync/libraries/TransactionValidator.sol";
        import {L2Log, L2Message, PubdataPricingMode, FeeParams, SecondaryChainSyncStatus} from "./zksync/l1-contracts/zksync/Storage.sol";
        import {UncheckedMath} from "./zksync/l1-contracts/common/libraries/UncheckedMath.sol";
        import {UnsafeBytes} from "./zksync/l1-contracts/common/libraries/UnsafeBytes.sol";
        import {REQUIRED_L2_GAS_PRICE_PER_PUBDATA, MAX_NEW_FACTORY_DEPS, L1_GAS_PER_PUBDATA_BYTE, L2_L1_LOGS_TREE_DEFAULT_LEAF_HASH} from "./zksync/l1-contracts/zksync/Config.sol";
        import {L2_TO_L1_MESSENGER_SYSTEM_CONTRACT_ADDR, L2_BOOTLOADER_ADDRESS, L2_ETH_TOKEN_SYSTEM_CONTRACT_ADDR} from "./zksync/l1-contracts/common/L2ContractAddresses.sol";
        import {IGetters} from "./zksync/l1-contracts/zksync/interfaces/IGetters.sol";
        /// @title ZkLink contract
        /// @author zk.link
        contract ZkLink is
            IZkLink,
            IMailbox,
            IAdmin,
            IGetters,
            OwnableUpgradeable,
            UUPSUpgradeable,
            ReentrancyGuardUpgradeable,
            PausableUpgradeable
        {
            using UncheckedMath for uint256;
            // keccak256("ForwardL2Request(address gateway,bool isContractCall,address sender,uint256 txId,address contractAddressL2,uint256 l2Value,bytes32 l2CallDataHash,uint256 l2GasLimit,uint256 l2GasPricePerPubdata,bytes32 factoryDepsHash,address refundRecipient)")
            bytes32 public constant FORWARD_REQUEST_TYPE_HASH =
                0xe0aaca1722ef50bb0c9b032e5b16ce2b79fa9f23638835456b27fd6894f8292c;
            /// @dev Whether eth is the gas token
            bool public immutable IS_ETH_GAS_TOKEN;
            /// @notice The gateway is used for communicating with L1
            IL2Gateway public gateway;
            /// @notice List of permitted validators
            mapping(address validatorAddress => bool isValidator) public validators;
            /// @dev The white list allow to send request L2 request
            mapping(address contractAddress => bool isPermitToSendL2Request) public allowLists;
            /// @dev Gas price of primary chain
            uint256 public txGasPrice;
            /// @dev Fee params used to derive gasPrice for the L1->L2 transactions. For L2 transactions,
            /// the bootloader gives enough freedom to the operator.
            FeeParams public feeParams;
            /// @dev The total number of priority operations that were added to the priority queue
            uint256 public totalPriorityTxs;
            /// @dev The total number of synced priority operations
            uint256 public totalSyncedPriorityTxs;
            /// @dev The sync status for each priority operation
            mapping(uint256 priorityOpId => SecondaryChainSyncStatus) public priorityOpSyncStatus;
            /// @notice Total number of executed batches i.e. batches[totalBatchesExecuted] points at the latest executed batch
            /// (batch 0 is genesis)
            uint256 public totalBatchesExecuted;
            /// @dev Stored root hashes of L2 -> L1 logs
            mapping(uint256 batchNumber => bytes32 l2LogsRootHash) public l2LogsRootHashes;
            /// @dev Stored the l2 tx hash map from secondary chain to primary chain
            mapping(bytes32 l2TxHash => bytes32 primaryChainL2TxHash) public l2TxHashMap;
            /// @dev The total forward fee payed to validator
            uint256 public totalValidatorForwardFee;
            /// @dev The total forward fee withdrawn by validator
            uint256 public totalValidatorForwardFeeWithdrawn;
            /// @dev A mapping L2 batch number => message number => flag.
            /// @dev The L2 -> L1 log is sent for every withdrawal, so this mapping is serving as
            /// a flag to indicate that the message was already processed.
            /// @dev Used to indicate that eth withdrawal was already processed
            mapping(uint256 l2BatchNumber => mapping(uint256 l2ToL1MessageNumber => bool isFinalized))
                public isEthWithdrawalFinalized;
            /// @dev The forward fee allocator
            address public forwardFeeAllocator;
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
            /// @notice Gateway init
            event InitGateway(IL2Gateway gateway);
            /// @notice Contract's permit status changed
            event ContractAllowStatusUpdate(address contractAddress, bool isPermit);
            /// @notice Tx gas price changed
            event TxGasPriceUpdate(uint256 oldTxGasPrice, uint256 newTxGasPrice);
            /// @notice Validator's status changed
            event ValidatorStatusUpdate(address validatorAddress, bool isActive);
            /// @notice Fee params for L1->L2 transactions changed
            event NewFeeParams(FeeParams oldFeeParams, FeeParams newFeeParams);
            /// @notice New priority request event. Emitted when a request is placed into the priority queue
            event NewPriorityRequest(uint256 priorityOpId, ForwardL2Request l2Request);
            /// @notice Emitted send sync status to primary chain.
            event SyncL2Requests(uint256 totalSyncedPriorityTxs, bytes32 syncHash, uint256 forwardEthAmount);
            /// @notice Emitted when receive batch root from primary chain.
            event SyncBatchRoot(uint256 batchNumber, bytes32 l2LogsRootHash, uint256 forwardEthAmount);
            /// @notice Emitted when receive l2 tx hash from primary chain.
            event SyncL2TxHash(bytes32 l2TxHash, bytes32 primaryChainL2TxHash);
            /// @notice Emitted when validator withdraw forward fee
            event WithdrawForwardFee(address receiver, uint256 amount);
            /// @notice Emitted when the withdrawal is finalized on L1 and funds are released.
            /// @param to The address to which the funds were sent
            /// @param amount The amount of funds that were sent
            event EthWithdrawalFinalized(address indexed to, uint256 amount);
            /// @notice Forward fee allocator changed
            event ForwardFeeAllocatorUpdate(address oldAllocator, address newAllocator);
            /// @notice Check if msg sender is gateway
            modifier onlyGateway() {
                require(msg.sender == address(gateway), "Not gateway");
                _;
            }
            /// @notice Checks if validator is active
            modifier onlyValidator() {
                require(validators[msg.sender], "Not validator"); // validator is not active
                _;
            }
            /// @notice Checks if msg sender is forward fee allocator
            modifier onlyForwardFeeAllocator() {
                require(msg.sender == forwardFeeAllocator, "Not forward fee allocator");
                _;
            }
            constructor(bool _isEthGasToken) {
                IS_ETH_GAS_TOKEN = _isEthGasToken;
                _disableInitializers();
            }
            function initialize() external initializer {
                __Ownable_init();
                __UUPSUpgradeable_init();
                __ReentrancyGuard_init();
                __Pausable_init();
            }
            function _authorizeUpgrade(address newImplementation) internal override onlyOwner {}
            /// @dev Pause the contract, can only be called by the owner
            function pause() external onlyOwner {
                _pause();
            }
            /// @dev Unpause the contract, can only be called by the owner
            function unpause() external onlyOwner {
                _unpause();
            }
            function getGateway() external view returns (IL2Gateway) {
                return gateway;
            }
            function getGovernor() external view returns (address) {
                return owner();
            }
            function getTotalBatchesExecuted() external view returns (uint256) {
                return totalBatchesExecuted;
            }
            function getTotalPriorityTxs() external view returns (uint256) {
                return totalPriorityTxs;
            }
            function isValidator(address _address) external view returns (bool) {
                return validators[_address];
            }
            function l2LogsRootHash(uint256 _batchNumber) external view returns (bytes32 merkleRoot) {
                return l2LogsRootHashes[_batchNumber];
            }
            function getPriorityTxMaxGasLimit() public pure returns (uint256) {
                return 72000000;
            }
            /// @dev Init gateway, can only be called by the owner
            function setGateway(IL2Gateway _gateway) external onlyOwner {
                require(address(gateway) == address(0), "Duplicate init gateway");
                gateway = _gateway;
                emit InitGateway(_gateway);
            }
            /// @dev Update the permit status of contract, can only be called by the owner
            function setAllowList(address _contractAddress, bool _permitted) external onlyOwner {
                allowLists[_contractAddress] = _permitted;
                emit ContractAllowStatusUpdate(_contractAddress, _permitted);
            }
            /// @dev Update the tx gas price
            function setTxGasPrice(uint256 _newTxGasPrice) external onlyOwner {
                uint256 oldTxGasPrice = txGasPrice;
                txGasPrice = _newTxGasPrice;
                emit TxGasPriceUpdate(oldTxGasPrice, _newTxGasPrice);
            }
            function setValidator(address _validator, bool _active) external onlyGateway {
                validators[_validator] = _active;
                emit ValidatorStatusUpdate(_validator, _active);
            }
            function changeFeeParams(FeeParams calldata _newFeeParams) external onlyGateway {
                // Double checking that the new fee params are valid, i.e.
                // the maximal pubdata per batch is not less than the maximal pubdata per priority transaction.
                require(_newFeeParams.maxPubdataPerBatch >= _newFeeParams.priorityTxMaxPubdata, "n6");
                FeeParams memory oldFeeParams = feeParams;
                feeParams = _newFeeParams;
                emit NewFeeParams(oldFeeParams, _newFeeParams);
            }
            /// @dev Update the forward fee allocator
            function setForwardFeeAllocator(address _newForwardFeeAllocator) external onlyOwner {
                require(_newForwardFeeAllocator != address(0), "Invalid allocator");
                address oldAllocator = forwardFeeAllocator;
                forwardFeeAllocator = _newForwardFeeAllocator;
                emit ForwardFeeAllocatorUpdate(oldAllocator, _newForwardFeeAllocator);
            }
            function l2TransactionBaseCost(
                uint256 _gasPrice,
                uint256 _l2GasLimit,
                uint256 _l2GasPerPubdataByteLimit
            ) public view returns (uint256) {
                uint256 l2GasPrice = _deriveL2GasPrice(_gasPrice, _l2GasPerPubdataByteLimit);
                return l2GasPrice * _l2GasLimit;
            }
            function requestL2Transaction(
                address _contractL2,
                uint256 _l2Value,
                bytes calldata _calldata,
                uint256 _l2GasLimit,
                uint256 _l2GasPerPubdataByteLimit,
                bytes[] calldata _factoryDeps,
                address _refundRecipient
            ) external payable nonReentrant whenNotPaused returns (bytes32 canonicalTxHash) {
                // Disable l2 value if eth is not the gas token
                if (!IS_ETH_GAS_TOKEN) {
                    require(_l2Value == 0, "Not allow l2 value");
                }
                // Change the sender address if it is a smart contract to prevent address collision between L1 and L2.
                // Please note, currently zkSync address derivation is different from Ethereum one, but it may be changed in the future.
                address sender = msg.sender;
                bool isContractCall = false;
                // solhint-disable-next-line avoid-tx-origin
                if (sender != tx.origin) {
                    // Check contract call is allowed for safe reasons
                    require(allowLists[sender], "Not allow to send L2 request");
                    sender = AddressAliasHelper.applyL1ToL2Alias(msg.sender);
                    isContractCall = true;
                } else {
                    // Temporarily prohibit contract calls from EOA address for safe reasons
                    require(_calldata.length == 0, "Not allow to call contract");
                }
                // Enforcing that `_l2GasPerPubdataByteLimit` equals to a certain constant number. This is needed
                // to ensure that users do not get used to using "exotic" numbers for _l2GasPerPubdataByteLimit, e.g. 1-2, etc.
                // VERY IMPORTANT: nobody should rely on this constant to be fixed and every contract should give their users the ability to provide the
                // ability to provide `_l2GasPerPubdataByteLimit` for each independent transaction.
                // CHANGING THIS CONSTANT SHOULD BE A CLIENT-SIDE CHANGE.
                require(_l2GasPerPubdataByteLimit == REQUIRED_L2_GAS_PRICE_PER_PUBDATA, "Invalid l2GasPerPubdataByteLimit");
                require(_factoryDeps.length <= MAX_NEW_FACTORY_DEPS, "Invalid factoryDeps");
                // Checking that the user provided enough ether to pay for the transaction.
                uint256 l2GasPrice = _deriveL2GasPrice(txGasPrice, _l2GasPerPubdataByteLimit);
                uint256 baseCost = l2GasPrice * _l2GasLimit;
                require(msg.value == baseCost + _l2Value, "Invalid msg value"); // The `msg.value` doesn't cover the transaction cost
                totalValidatorForwardFee = totalValidatorForwardFee + baseCost;
                // If the `_refundRecipient` is not provided, we use the `sender` as the recipient.
                address refundRecipient = _refundRecipient == address(0) ? sender : _refundRecipient;
                // If the `_refundRecipient` is a smart contract, we apply the L1 to L2 alias to prevent foot guns.
                if (refundRecipient.code.length > 0) {
                    refundRecipient = AddressAliasHelper.applyL1ToL2Alias(refundRecipient);
                }
                // Build l2 request params
                uint256 _totalPriorityTxs = totalPriorityTxs;
                ForwardL2Request memory request = ForwardL2Request(
                    gateway.getRemoteGateway(),
                    isContractCall,
                    sender,
                    _totalPriorityTxs,
                    _contractL2,
                    _l2Value,
                    _calldata,
                    _l2GasLimit,
                    _l2GasPerPubdataByteLimit,
                    _factoryDeps,
                    refundRecipient
                );
                // Validate l2 transaction
                {
                    L2CanonicalTransaction memory transaction = _serializeL2Transaction(request);
                    bytes memory transactionEncoding = abi.encode(transaction);
                    TransactionValidator.validateL1ToL2Transaction(
                        transaction,
                        transactionEncoding,
                        getPriorityTxMaxGasLimit(),
                        feeParams.priorityTxMaxPubdata
                    );
                }
                canonicalTxHash = hashForwardL2Request(request);
                // Accumulate sync status
                SecondaryChainSyncStatus memory syncStatus;
                if (_totalPriorityTxs == 0) {
                    syncStatus.hash = canonicalTxHash;
                    syncStatus.amount = _l2Value;
                } else {
                    syncStatus = priorityOpSyncStatus[_totalPriorityTxs - 1];
                    syncStatus.hash = keccak256(abi.encodePacked(syncStatus.hash, canonicalTxHash));
                    syncStatus.amount = syncStatus.amount + _l2Value;
                }
                priorityOpSyncStatus[_totalPriorityTxs] = syncStatus;
                totalPriorityTxs = _totalPriorityTxs + 1;
                emit NewPriorityRequest(request.txId, request);
            }
            function finalizeEthWithdrawal(
                uint256 _l2BatchNumber,
                uint256 _l2MessageIndex,
                uint16 _l2TxNumberInBatch,
                bytes calldata _message,
                bytes32[] calldata _merkleProof
            ) external nonReentrant {
                require(IS_ETH_GAS_TOKEN, "Not allow eth withdraw");
                require(!isEthWithdrawalFinalized[_l2BatchNumber][_l2MessageIndex], "jj");
                L2Message memory l2ToL1Message = L2Message({
                    txNumberInBatch: _l2TxNumberInBatch,
                    sender: L2_ETH_TOKEN_SYSTEM_CONTRACT_ADDR,
                    data: _message
                });
                (address _l1Gateway, uint256 _amount, address _l1WithdrawReceiver) = _parseL2WithdrawalMessage(_message);
                require(_l1Gateway == gateway.getRemoteGateway(), "rg");
                bool proofValid = proveL2MessageInclusion(_l2BatchNumber, _l2MessageIndex, l2ToL1Message, _merkleProof);
                require(proofValid, "pi"); // Failed to verify that withdrawal was actually initialized on L2
                isEthWithdrawalFinalized[_l2BatchNumber][_l2MessageIndex] = true;
                _withdrawFunds(_l1WithdrawReceiver, _amount);
                emit EthWithdrawalFinalized(_l1WithdrawReceiver, _amount);
            }
            function proveL2MessageInclusion(
                uint256 _batchNumber,
                uint256 _index,
                L2Message memory _message,
                bytes32[] calldata _proof
            ) public view returns (bool) {
                return _proveL2LogInclusion(_batchNumber, _index, _L2MessageToLog(_message), _proof);
            }
            function proveL1ToL2TransactionStatus(
                bytes32 _l2TxHash,
                uint256 _l2BatchNumber,
                uint256 _l2MessageIndex,
                uint16 _l2TxNumberInBatch,
                bytes32[] calldata _merkleProof,
                TxStatus _status
            ) public view returns (bool) {
                // Get l2 tx hash on primary chain
                bytes32 primaryChainL2TxHash = l2TxHashMap[_l2TxHash];
                require(primaryChainL2TxHash != bytes32(0), "Invalid l2 tx hash");
                // Bootloader sends an L2 -> L1 log only after processing the L1 -> L2 transaction.
                // Thus, we can verify that the L1 -> L2 transaction was included in the L2 batch with specified status.
                //
                // The semantics of such L2 -> L1 log is always:
                // - sender = L2_BOOTLOADER_ADDRESS
                // - key = hash(L1ToL2Transaction)
                // - value = status of the processing transaction (1 - success & 0 - fail)
                // - isService = true (just a conventional value)
                // - l2ShardId = 0 (means that L1 -> L2 transaction was processed in a rollup shard, other shards are not available yet anyway)
                // - txNumberInBatch = number of transaction in the batch
                L2Log memory l2Log = L2Log({
                    l2ShardId: 0,
                    isService: true,
                    txNumberInBatch: _l2TxNumberInBatch,
                    sender: L2_BOOTLOADER_ADDRESS,
                    key: primaryChainL2TxHash,
                    value: bytes32(uint256(_status))
                });
                return _proveL2LogInclusion(_l2BatchNumber, _l2MessageIndex, l2Log, _merkleProof);
            }
            function syncL2Requests(uint256 _newTotalSyncedPriorityTxs) external payable onlyValidator {
                // Check newTotalSyncedPriorityTxs
                require(
                    _newTotalSyncedPriorityTxs <= totalPriorityTxs && _newTotalSyncedPriorityTxs > totalSyncedPriorityTxs,
                    "Invalid sync point"
                );
                // Forward eth amount is the difference of two accumulate amount
                SecondaryChainSyncStatus memory lastSyncStatus;
                if (totalSyncedPriorityTxs > 0) {
                    lastSyncStatus = priorityOpSyncStatus[totalSyncedPriorityTxs - 1];
                }
                SecondaryChainSyncStatus memory currentSyncStatus = priorityOpSyncStatus[_newTotalSyncedPriorityTxs - 1];
                uint256 forwardAmount = currentSyncStatus.amount - lastSyncStatus.amount;
                // Update synced priority txs
                totalSyncedPriorityTxs = _newTotalSyncedPriorityTxs;
                // Send sync status to L1 gateway
                bytes memory callData = abi.encodeCall(
                    IZkSync.syncL2Requests,
                    (gateway.getRemoteGateway(), _newTotalSyncedPriorityTxs, currentSyncStatus.hash, forwardAmount)
                );
                gateway.sendMessage{value: msg.value + forwardAmount}(forwardAmount, callData);
                emit SyncL2Requests(_newTotalSyncedPriorityTxs, currentSyncStatus.hash, forwardAmount);
            }
            function syncBatchRoot(
                uint256 _batchNumber,
                bytes32 _l2LogsRootHash,
                uint256 _forwardEthAmount
            ) external payable onlyGateway {
                require(msg.value == _forwardEthAmount, "Invalid forward amount");
                // Allows repeated sending of the forward amount of the batch
                if (_batchNumber > totalBatchesExecuted) {
                    totalBatchesExecuted = _batchNumber;
                }
                l2LogsRootHashes[_batchNumber] = _l2LogsRootHash;
                emit SyncBatchRoot(_batchNumber, _l2LogsRootHash, _forwardEthAmount);
            }
            function syncL2TxHash(bytes32 _l2TxHash, bytes32 _primaryChainL2TxHash) external onlyGateway {
                l2TxHashMap[_l2TxHash] = _primaryChainL2TxHash;
                emit SyncL2TxHash(_l2TxHash, _primaryChainL2TxHash);
            }
            function withdrawForwardFee(address _receiver, uint256 _amount) external nonReentrant onlyForwardFeeAllocator {
                require(_amount > 0, "Invalid amount");
                uint256 newWithdrawnFee = totalValidatorForwardFeeWithdrawn + _amount;
                require(totalValidatorForwardFee >= newWithdrawnFee, "Withdraw exceed");
                // Update withdrawn fee
                totalValidatorForwardFeeWithdrawn = newWithdrawnFee;
                // solhint-disable-next-line avoid-low-level-calls
                (bool success, ) = _receiver.call{value: _amount}("");
                require(success, "Withdraw failed");
                emit WithdrawForwardFee(_receiver, _amount);
            }
            /// @notice Derives the price for L2 gas in ETH to be paid.
            /// @param _l1GasPrice The gas price on L1.
            /// @param _gasPerPubdata The price for each pubdata byte in L2 gas
            /// @return The price of L2 gas in ETH
            function _deriveL2GasPrice(uint256 _l1GasPrice, uint256 _gasPerPubdata) internal view returns (uint256) {
                FeeParams memory _feeParams = feeParams;
                uint256 pubdataPriceETH;
                if (_feeParams.pubdataPricingMode == PubdataPricingMode.Rollup) {
                    pubdataPriceETH = L1_GAS_PER_PUBDATA_BYTE * _l1GasPrice;
                }
                uint256 batchOverheadETH = uint256(_feeParams.batchOverheadL1Gas) * _l1GasPrice;
                uint256 fullPubdataPriceETH = pubdataPriceETH + batchOverheadETH / uint256(_feeParams.maxPubdataPerBatch);
                uint256 l2GasPrice = _feeParams.minimalL2GasPrice + batchOverheadETH / uint256(_feeParams.maxL2GasPerBatch);
                uint256 minL2GasPriceETH = (fullPubdataPriceETH + _gasPerPubdata - 1) / _gasPerPubdata;
                return Math.max(l2GasPrice, minL2GasPriceETH);
            }
            function _serializeL2Transaction(
                ForwardL2Request memory _request
            ) internal pure returns (L2CanonicalTransaction memory transaction) {
                transaction = L2CanonicalTransaction({
                    txType: uint256(0),
                    from: uint256(0),
                    to: uint256(0),
                    gasLimit: _request.l2GasLimit, // Used in validate l2 transaction
                    gasPerPubdataByteLimit: _request.l2GasPricePerPubdata, // Used in validate l2 transaction
                    maxFeePerGas: uint256(0),
                    maxPriorityFeePerGas: uint256(0),
                    paymaster: uint256(0),
                    nonce: uint256(0),
                    value: uint256(0),
                    reserved: [uint256(0), uint256(0), uint256(0), uint256(0)],
                    data: _request.l2CallData, // Length used in validate l2 transaction
                    signature: new bytes(0),
                    factoryDeps: new uint256[](_request.factoryDeps.length), // Length used in validate l2 transaction
                    paymasterInput: new bytes(0),
                    reservedDynamic: new bytes(0)
                });
            }
            /// @dev Convert arbitrary-length message to the raw l2 log
            function _L2MessageToLog(L2Message memory _message) internal pure returns (L2Log memory) {
                return
                    L2Log({
                        l2ShardId: 0,
                        isService: true,
                        txNumberInBatch: _message.txNumberInBatch,
                        sender: L2_TO_L1_MESSENGER_SYSTEM_CONTRACT_ADDR,
                        key: bytes32(uint256(uint160(_message.sender))),
                        value: keccak256(_message.data)
                    });
            }
            /// @dev Prove that a specific L2 log was sent in a specific L2 batch number
            function _proveL2LogInclusion(
                uint256 _batchNumber,
                uint256 _index,
                L2Log memory _log,
                bytes32[] calldata _proof
            ) internal view returns (bool) {
                require(_batchNumber <= totalBatchesExecuted, "xx");
                bytes32 hashedLog = keccak256(
                    abi.encodePacked(_log.l2ShardId, _log.isService, _log.txNumberInBatch, _log.sender, _log.key, _log.value)
                );
                // Check that hashed log is not the default one,
                // otherwise it means that the value is out of range of sent L2 -> L1 logs
                require(hashedLog != L2_L1_LOGS_TREE_DEFAULT_LEAF_HASH, "tw");
                // It is ok to not check length of `_proof` array, as length
                // of leaf preimage (which is `L2_TO_L1_LOG_SERIALIZE_SIZE`) is not
                // equal to the length of other nodes preimages (which are `2 * 32`)
                bytes32 calculatedRootHash = Merkle.calculateRoot(_proof, _index, hashedLog);
                bytes32 actualRootHash = l2LogsRootHashes[_batchNumber];
                return actualRootHash == calculatedRootHash;
            }
            /// @dev Decode the withdraw message that came from L2
            function _parseL2WithdrawalMessage(
                bytes memory _message
            ) internal pure returns (address l1Gateway, uint256 amount, address l1Receiver) {
                // We check that the message is long enough to read the data.
                // Please note that there are two versions of the message:
                // 1. The message that is sent by `withdraw(address _l1Receiver)`
                // It should be equal to the length of the bytes4 function signature + address l1Receiver + uint256 amount = 4 + 20 + 32 = 56 (bytes).
                // 2. The message that is sent by `withdrawWithMessage(address _l1Receiver, bytes calldata _additionalData)`
                // It should be equal to the length of the following:
                // bytes4 function signature + address l1Gateway + uint256 amount + address l2Sender + bytes _additionalData
                // (where the _additionalData = abi.encode(l1Receiver))
                // = 4 + 20 + 32 + 20 + 32 == 108 (bytes).
                require(_message.length == 108, "pm");
                (uint32 functionSignature, uint256 offset) = UnsafeBytes.readUint32(_message, 0);
                require(bytes4(functionSignature) == this.finalizeEthWithdrawal.selector, "is");
                (l1Gateway, offset) = UnsafeBytes.readAddress(_message, offset);
                (amount, offset) = UnsafeBytes.readUint256(_message, offset);
                // The additional data is l1 receiver address
                (l1Receiver, offset) = UnsafeBytes.readAddress(_message, offset + 32);
            }
            /// @notice Transfer ether from the contract to the receiver
            /// @dev Reverts only if the transfer call failed
            function _withdrawFunds(address _to, uint256 _amount) internal {
                bool callSuccess;
                // Low-level assembly call, to avoid any memory copying (save gas)
                assembly {
                    callSuccess := call(gas(), _to, _amount, 0, 0, 0, 0)
                }
                require(callSuccess, "pz");
            }
            function hashForwardL2Request(ForwardL2Request memory _request) internal pure returns (bytes32) {
                return
                    keccak256(
                        abi.encode(
                            FORWARD_REQUEST_TYPE_HASH,
                            _request.gateway,
                            _request.isContractCall,
                            _request.sender,
                            _request.txId,
                            _request.contractAddressL2,
                            _request.l2Value,
                            keccak256(_request.l2CallData),
                            _request.l2GasLimit,
                            _request.l2GasPricePerPubdata,
                            keccak256(abi.encode(_request.factoryDeps)),
                            _request.refundRecipient
                        )
                    );
            }
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        /// @dev The address of the L2 deployer system contract.
        address constant L2_DEPLOYER_SYSTEM_CONTRACT_ADDR = address(0x8006);
        /// @dev The special reserved L2 address. It is located in the system contracts space but doesn't have deployed
        /// bytecode.
        /// @dev The L2 deployer system contract allows changing bytecodes on any address if the `msg.sender` is this address.
        /// @dev So, whenever the governor wants to redeploy system contracts, it just initiates the L1 upgrade call deployer
        /// system contract
        /// via the L1 -> L2 transaction with `sender == L2_FORCE_DEPLOYER_ADDR`. For more details see the
        /// `diamond-initializers` contracts.
        address constant L2_FORCE_DEPLOYER_ADDR = address(0x8007);
        /// @dev The address of the special smart contract that can send arbitrary length message as an L2 log
        address constant L2_TO_L1_MESSENGER_SYSTEM_CONTRACT_ADDR = address(0x8008);
        /// @dev The formal address of the initial program of the system: the bootloader
        address constant L2_BOOTLOADER_ADDRESS = address(0x8001);
        /// @dev The address of the eth token system contract
        address constant L2_ETH_TOKEN_SYSTEM_CONTRACT_ADDR = address(0x800a);
        /// @dev The address of the known code storage system contract
        address constant L2_KNOWN_CODE_STORAGE_SYSTEM_CONTRACT_ADDR = address(0x8004);
        /// @dev The address of the context system contract
        address constant L2_SYSTEM_CONTEXT_SYSTEM_CONTRACT_ADDR = address(0x800b);
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        /**
         * @author Matter Labs
         * @custom:security-contact [email protected]
         * @notice The library for unchecked math.
         */
        library UncheckedMath {
            function uncheckedInc(uint256 _number) internal pure returns (uint256) {
                unchecked {
                    return _number + 1;
                }
            }
            function uncheckedAdd(uint256 _lhs, uint256 _rhs) internal pure returns (uint256) {
                unchecked {
                    return _lhs + _rhs;
                }
            }
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        /**
         * @author Matter Labs
         * @custom:security-contact [email protected]
         * @dev The library provides a set of functions that help read data from an "abi.encodePacked" byte array.
         * @dev Each of the functions accepts the `bytes memory` and the offset where data should be read and returns a value of a certain type.
         *
         * @dev WARNING!
         * 1) Functions don't check the length of the bytes array, so it can go out of bounds.
         * The user of the library must check for bytes length before using any functions from the library!
         *
         * 2) Read variables are not cleaned up - https://docs.soliditylang.org/en/v0.8.16/internals/variable_cleanup.html.
         * Using data in inline assembly can lead to unexpected behavior!
         */
        library UnsafeBytes {
            function readUint32(bytes memory _bytes, uint256 _start) internal pure returns (uint32 result, uint256 offset) {
                assembly {
                    offset := add(_start, 4)
                    result := mload(add(_bytes, offset))
                }
            }
            function readAddress(bytes memory _bytes, uint256 _start) internal pure returns (address result, uint256 offset) {
                assembly {
                    offset := add(_start, 20)
                    result := mload(add(_bytes, offset))
                }
            }
            function readUint256(bytes memory _bytes, uint256 _start) internal pure returns (uint256 result, uint256 offset) {
                assembly {
                    offset := add(_start, 32)
                    result := mload(add(_bytes, offset))
                }
            }
            function readBytes32(bytes memory _bytes, uint256 _start) internal pure returns (bytes32 result, uint256 offset) {
                assembly {
                    offset := add(_start, 32)
                    result := mload(add(_bytes, offset))
                }
            }
            // Original source code: https://github.com/GNSPS/solidity-bytes-utils/blob/master/contracts/BytesLib.sol#L228
            // Get slice from bytes arrays
            // Returns the newly created 'bytes memory'
            // NOTE: theoretically possible overflow of (_start + _length)
            function slice(bytes memory _bytes, uint256 _start, uint256 _length) internal pure returns (bytes memory) {
                require(_bytes.length >= (_start + _length), "Z"); // bytes length is less then start byte + length bytes
                bytes memory tempBytes = new bytes(_length);
                if (_length != 0) {
                    assembly {
                        let slice_curr := add(tempBytes, 0x20)
                        let slice_end := add(slice_curr, _length)
                        for {
                            let array_current := add(_bytes, add(_start, 0x20))
                        } lt(slice_curr, slice_end) {
                            slice_curr := add(slice_curr, 0x20)
                            array_current := add(array_current, 0x20)
                        } {
                            mstore(slice_curr, mload(array_current))
                        }
                    }
                }
                return tempBytes;
            }
        }
        // SPDX-License-Identifier: Apache-2.0
        /*
         * Copyright 2019-2021, Offchain Labs, Inc.
         *
         * Licensed under the Apache License, Version 2.0 (the "License");
         * you may not use this file except in compliance with the License.
         * You may obtain a copy of the License at
         *
         *    http://www.apache.org/licenses/LICENSE-2.0
         *
         * Unless required by applicable law or agreed to in writing, software
         * distributed under the License is distributed on an "AS IS" BASIS,
         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
         * See the License for the specific language governing permissions and
         * limitations under the License.
         */
        pragma solidity ^0.8.0;
        library AddressAliasHelper {
            uint160 internal constant OFFSET = uint160(0x1111000000000000000000000000000000001111);
            /// @notice Utility function converts the address that submitted a tx
            /// to the inbox on L1 to the msg.sender viewed on L2
            /// @param l1Address the address in the L1 that triggered the tx to L2
            /// @return l2Address L2 address as viewed in msg.sender
            function applyL1ToL2Alias(address l1Address) internal pure returns (address l2Address) {
                unchecked {
                    l2Address = address(uint160(l1Address) + OFFSET);
                }
            }
            /// @notice Utility function that converts the msg.sender viewed on L2 to the
            /// address that submitted a tx to the inbox on L1
            /// @param l2Address L2 address as viewed in msg.sender
            /// @return l1Address the address in the L1 that triggered the tx to L2
            function undoL1ToL2Alias(address l2Address) internal pure returns (address l1Address) {
                unchecked {
                    l1Address = address(uint160(l2Address) - OFFSET);
                }
            }
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        /// @dev `keccak256("")`
        bytes32 constant EMPTY_STRING_KECCAK = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        /// @dev Bytes in raw L2 log
        /// @dev Equal to the bytes size of the tuple - (uint8 ShardId, bool isService, uint16 txNumberInBatch, address sender,
        /// bytes32 key, bytes32 value)
        uint256 constant L2_TO_L1_LOG_SERIALIZE_SIZE = 88;
        /// @dev The maximum length of the bytes array with L2 -> L1 logs
        uint256 constant MAX_L2_TO_L1_LOGS_COMMITMENT_BYTES = 4 + L2_TO_L1_LOG_SERIALIZE_SIZE * 512;
        /// @dev The value of default leaf hash for L2 -> L1 logs Merkle tree
        /// @dev An incomplete fixed-size tree is filled with this value to be a full binary tree
        /// @dev Actually equal to the `keccak256(new bytes(L2_TO_L1_LOG_SERIALIZE_SIZE))`
        bytes32 constant L2_L1_LOGS_TREE_DEFAULT_LEAF_HASH = 0x72abee45b59e344af8a6e520241c4744aff26ed411f4c4b00f8af09adada43ba;
        // TODO: change constant to the real root hash of empty Merkle tree (SMA-184)
        bytes32 constant DEFAULT_L2_LOGS_TREE_ROOT_HASH = bytes32(0);
        /// @dev Denotes the type of the zkSync transaction that came from L1.
        uint256 constant PRIORITY_OPERATION_L2_TX_TYPE = 255;
        /// @dev Denotes the type of the zkSync transaction that is used for system upgrades.
        uint256 constant SYSTEM_UPGRADE_L2_TX_TYPE = 254;
        /// @dev The maximal allowed difference between protocol versions in an upgrade. The 100 gap is needed
        /// in case a protocol version has been tested on testnet, but then not launched on mainnet, e.g.
        /// due to a bug found.
        uint256 constant MAX_ALLOWED_PROTOCOL_VERSION_DELTA = 100;
        /// @dev The amount of time in seconds the validator has to process the priority transaction
        /// NOTE: The constant is set to zero for the Alpha release period
        uint256 constant PRIORITY_EXPIRATION = 0 days;
        /// @dev Timestamp - seconds since unix epoch.
        uint256 constant COMMIT_TIMESTAMP_NOT_OLDER = 3 days;
        /// @dev Maximum available error between real commit batch timestamp and analog used in the verifier (in seconds)
        /// @dev Must be used cause miner's `block.timestamp` value can differ on some small value (as we know - 12 seconds)
        uint256 constant COMMIT_TIMESTAMP_APPROXIMATION_DELTA = 1 hours;
        /// @dev Shift to apply to verify public input before verifying.
        uint256 constant PUBLIC_INPUT_SHIFT = 32;
        /// @dev The maximum number of L2 gas that a user can request for an L2 transaction
        uint256 constant MAX_GAS_PER_TRANSACTION = 80000000;
        /// @dev Even though the price for 1 byte of pubdata is 16 L1 gas, we have a slightly increased
        /// value.
        uint256 constant L1_GAS_PER_PUBDATA_BYTE = 17;
        /// @dev The intrinsic cost of the L1->l2 transaction in computational L2 gas
        uint256 constant L1_TX_INTRINSIC_L2_GAS = 167157;
        /// @dev The intrinsic cost of the L1->l2 transaction in pubdata
        uint256 constant L1_TX_INTRINSIC_PUBDATA = 88;
        /// @dev The minimal base price for L1 transaction
        uint256 constant L1_TX_MIN_L2_GAS_BASE = 173484;
        /// @dev The number of L2 gas the transaction starts costing more with each 544 bytes of encoding
        uint256 constant L1_TX_DELTA_544_ENCODING_BYTES = 1656;
        /// @dev The number of L2 gas an L1->L2 transaction gains with each new factory dependency
        uint256 constant L1_TX_DELTA_FACTORY_DEPS_L2_GAS = 2473;
        /// @dev The number of L2 gas an L1->L2 transaction gains with each new factory dependency
        uint256 constant L1_TX_DELTA_FACTORY_DEPS_PUBDATA = 64;
        /// @dev The number of pubdata an L1->L2 transaction requires with each new factory dependency
        uint256 constant MAX_NEW_FACTORY_DEPS = 32;
        /// @dev The L2 gasPricePerPubdata required to be used in bridges.
        uint256 constant REQUIRED_L2_GAS_PRICE_PER_PUBDATA = 800;
        /// @dev The mask which should be applied to the packed batch and L2 block timestamp in order
        /// to obtain the L2 block timestamp. Applying this mask is equivalent to calculating modulo 2**128
        uint256 constant PACKED_L2_BLOCK_TIMESTAMP_MASK = 0xffffffffffffffffffffffffffffffff;
        /// @dev The overhead for a transaction slot in L2 gas.
        /// It is roughly equal to 80kk/MAX_TRANSACTIONS_IN_BATCH, i.e. how many gas would an L1->L2 transaction
        /// need to pay to compensate for the batch being closed.
        /// @dev It is expected that the L1 contracts will enforce that the L2 gas price will be high enough to compensate
        /// the operator in case the batch is closed because of tx slots filling up.
        uint256 constant TX_SLOT_OVERHEAD_L2_GAS = 10000;
        /// @dev The overhead for each byte of the bootloader memory that the encoding of the transaction.
        /// It is roughly equal to 80kk/BOOTLOADER_MEMORY_FOR_TXS, i.e. how many gas would an L1->L2 transaction
        /// need to pay to compensate for the batch being closed.
        /// @dev It is expected that the L1 contracts will enforce that the L2 gas price will be high enough to compensate
        /// the operator in case the batch is closed because of the memory for transactions being filled up.
        uint256 constant MEMORY_OVERHEAD_GAS = 10;
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        import {FeeParams} from "../Storage.sol";
        import {IL2Gateway} from "../../../../interfaces/IL2Gateway.sol";
        /// @title The interface of the Admin Contract that controls access rights for contract management.
        /// @author Matter Labs
        /// @custom:security-contact [email protected]
        interface IAdmin {
            /// @notice Init gateway
            /// @param _gateway The gateway on local chain
            function setGateway(IL2Gateway _gateway) external;
            /// @notice Change validator status (active or not active)
            /// @param _validator Validator address
            /// @param _active Active flag
            function setValidator(address _validator, bool _active) external;
            /// @notice Change the fee params for L1->L2 transactions
            /// @param _newFeeParams The new fee params
            function changeFeeParams(FeeParams calldata _newFeeParams) external;
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        import {IL2Gateway} from "../../../../interfaces/IL2Gateway.sol";
        /// @title The interface of the Getters Contract that implements functions for getting contract state from outside the blockchain.
        /// @author Matter Labs
        /// @custom:security-contact [email protected]
        interface IGetters {
            /*//////////////////////////////////////////////////////////////
                                    CUSTOM GETTERS
            //////////////////////////////////////////////////////////////*/
            /// @return The gateway on local chain
            function getGateway() external view returns (IL2Gateway);
            /// @return The address of the current governor
            function getGovernor() external view returns (address);
            /// @return The total number of batches that were committed & verified & executed
            function getTotalBatchesExecuted() external view returns (uint256);
            /// @return The total number of priority operations that were added to the priority queue, including all processed ones
            function getTotalPriorityTxs() external view returns (uint256);
            /// @return Whether the address has a validator access
            function isValidator(address _address) external view returns (bool);
            /// @return merkleRoot Merkle root of the tree with L2 logs for the selected batch
            function l2LogsRootHash(uint256 _batchNumber) external view returns (bytes32 merkleRoot);
            /// @return The maximum number of L2 gas that a user can request for L1 -> L2 transactions
            function getPriorityTxMaxGasLimit() external view returns (uint256);
            /// @return Whether a withdrawal has been finalized.
            /// @param _l2BatchNumber The L2 batch number within which the withdrawal happened.
            /// @param _l2MessageIndex The index of the L2->L1 message denoting the withdrawal.
            function isEthWithdrawalFinalized(uint256 _l2BatchNumber, uint256 _l2MessageIndex) external view returns (bool);
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        import {L2Message} from "../Storage.sol";
        /// @dev The enum that represents the transaction execution status
        /// @param Failure The transaction execution failed
        /// @param Success The transaction execution succeeded
        enum TxStatus {
            Failure,
            Success
        }
        /// @title The interface of the zkSync Mailbox contract that provides interfaces for L1 <-> L2 interaction.
        /// @author Matter Labs
        /// @custom:security-contact [email protected]
        interface IMailbox {
            /// @dev Structure that includes all fields of the L2 transaction
            /// @dev The hash of this structure is the "canonical L2 transaction hash" and can be used as a unique identifier of a tx
            /// @param txType The tx type number, depending on which the L2 transaction can be interpreted differently
            /// @param from The sender's address. `uint256` type for possible address format changes and maintaining backward compatibility
            /// @param to The recipient's address. `uint256` type for possible address format changes and maintaining backward compatibility
            /// @param gasLimit The L2 gas limit for L2 transaction. Analog to the `gasLimit` on an L1 transactions
            /// @param gasPerPubdataByteLimit Maximum number of L2 gas that will cost one byte of pubdata (every piece of data that will be stored on L1 as calldata)
            /// @param maxFeePerGas The absolute maximum sender willing to pay per unit of L2 gas to get the transaction included in a batch. Analog to the EIP-1559 `maxFeePerGas` on an L1 transactions
            /// @param maxPriorityFeePerGas The additional fee that is paid directly to the validator to incentivize them to include the transaction in a batch. Analog to the EIP-1559 `maxPriorityFeePerGas` on an L1 transactions
            /// @param paymaster The address of the EIP-4337 paymaster, that will pay fees for the transaction. `uint256` type for possible address format changes and maintaining backward compatibility
            /// @param nonce The nonce of the transaction. For L1->L2 transactions it is the priority operation Id.
            /// @param value The value to pass with the transaction
            /// @param reserved The fixed-length fields for usage in a future extension of transaction formats
            /// @param data The calldata that is transmitted for the transaction call
            /// @param signature An abstract set of bytes that are used for transaction authorization
            /// @param factoryDeps The set of L2 bytecode hashes whose preimages were shown on L1
            /// @param paymasterInput The arbitrary-length data that is used as a calldata to the paymaster pre-call
            /// @param reservedDynamic The arbitrary-length field for usage in a future extension of transaction formats
            struct L2CanonicalTransaction {
                uint256 txType;
                uint256 from;
                uint256 to;
                uint256 gasLimit;
                uint256 gasPerPubdataByteLimit;
                uint256 maxFeePerGas;
                uint256 maxPriorityFeePerGas;
                uint256 paymaster;
                uint256 nonce;
                uint256 value;
                // In the future, we might want to add some
                // new fields to the struct. The `txData` struct
                // is to be passed to account and any changes to its structure
                // would mean a breaking change to these accounts. To prevent this,
                // we should keep some fields as "reserved".
                // It is also recommended that their length is fixed, since
                // it would allow easier proof integration (in case we will need
                // some special circuit for preprocessing transactions).
                uint256[4] reserved;
                bytes data;
                bytes signature;
                uint256[] factoryDeps;
                bytes paymasterInput;
                // Reserved dynamic type for the future use-case. Using it should be avoided,
                // But it is still here, just in case we want to enable some additional functionality.
                bytes reservedDynamic;
            }
            /// @dev Internal structure that contains the parameters for the forwardRequestL2Transaction
            /// @param gateway The secondary chain gateway;
            /// @param isContractCall It's true when the request come from a contract.
            /// @param sender The sender's address.
            /// @param txId The id of the priority transaction.
            /// @param contractAddressL2 The address of the contract on L2 to call.
            /// @param l2Value The msg.value of the L2 transaction.
            /// @param l2CallData The call data of the L2 transaction.
            /// @param l2GasLimit The limit of the L2 gas for the L2 transaction
            /// @param l2GasPrice The price of the L2 gas in Wei to be used for this transaction.
            /// @param l2GasPricePerPubdata The price for a single pubdata byte in L2 gas.
            /// @param refundRecipient The recipient of the refund for the transaction on L2. If the transaction fails, then
            /// this address will receive the `l2Value`.
            struct ForwardL2Request {
                address gateway;
                bool isContractCall;
                address sender;
                uint256 txId;
                address contractAddressL2;
                uint256 l2Value;
                bytes l2CallData;
                uint256 l2GasLimit;
                uint256 l2GasPricePerPubdata;
                bytes[] factoryDeps;
                address refundRecipient;
            }
            /// @notice Prove that a specific arbitrary-length message was sent in a specific L2 batch number
            /// @param _l2BatchNumber The executed L2 batch number in which the message appeared
            /// @param _index The position in the L2 logs Merkle tree of the l2Log that was sent with the message
            /// @param _message Information about the sent message: sender address, the message itself, tx index in the L2 batch where the message was sent
            /// @param _proof Merkle proof for inclusion of L2 log that was sent with the message
            /// @return Whether the proof is valid
            function proveL2MessageInclusion(
                uint256 _l2BatchNumber,
                uint256 _index,
                L2Message calldata _message,
                bytes32[] calldata _proof
            ) external view returns (bool);
            /// @notice Prove that the L1 -> L2 transaction was processed with the specified status.
            /// @param _l2TxHash The L2 canonical transaction hash
            /// @param _l2BatchNumber The L2 batch number where the transaction was processed
            /// @param _l2MessageIndex The position in the L2 logs Merkle tree of the l2Log that was sent with the message
            /// @param _l2TxNumberInBatch The L2 transaction number in the batch, in which the log was sent
            /// @param _merkleProof The Merkle proof of the processing L1 -> L2 transaction
            /// @param _status The execution status of the L1 -> L2 transaction (true - success & 0 - fail)
            /// @return Whether the proof is correct and the transaction was actually executed with provided status
            /// NOTE: It may return `false` for incorrect proof, but it doesn't mean that the L1 -> L2 transaction has an opposite status!
            function proveL1ToL2TransactionStatus(
                bytes32 _l2TxHash,
                uint256 _l2BatchNumber,
                uint256 _l2MessageIndex,
                uint16 _l2TxNumberInBatch,
                bytes32[] calldata _merkleProof,
                TxStatus _status
            ) external view returns (bool);
            /// @notice Request execution of L2 transaction from L1.
            /// @param _contractL2 The L2 receiver address
            /// @param _l2Value `msg.value` of L2 transaction
            /// @param _calldata The input of the L2 transaction
            /// @param _l2GasLimit Maximum amount of L2 gas that transaction can consume during execution on L2
            /// @param _l2GasPerPubdataByteLimit The maximum amount L2 gas that the operator may charge the user for single byte of pubdata.
            /// @param _factoryDeps An array of L2 bytecodes that will be marked as known on L2
            /// @param _refundRecipient The address on L2 that will receive the refund for the transaction.
            /// @dev If the L2 deposit finalization transaction fails, the `_refundRecipient` will receive the `_l2Value`.
            /// Please note, the contract may change the refund recipient's address to eliminate sending funds to addresses out of control.
            /// - If `_refundRecipient` is a contract on L1, the refund will be sent to the aliased `_refundRecipient`.
            /// - If `_refundRecipient` is set to `address(0)` and the sender has NO deployed bytecode on L1, the refund will be sent to the `msg.sender` address.
            /// - If `_refundRecipient` is set to `address(0)` and the sender has deployed bytecode on L1, the refund will be sent to the aliased `msg.sender` address.
            /// @dev The address aliasing of L1 contracts as refund recipient on L2 is necessary to guarantee that the funds are controllable,
            /// since address aliasing to the from address for the L2 tx will be applied if the L1 `msg.sender` is a contract.
            /// Without address aliasing for L1 contracts as refund recipients they would not be able to make proper L2 tx requests
            /// through the Mailbox to use or withdraw the funds from L2, and the funds would be lost.
            /// @return canonicalTxHash The hash of the requested L2 transaction. This hash can be used to follow the transaction status
            function requestL2Transaction(
                address _contractL2,
                uint256 _l2Value,
                bytes calldata _calldata,
                uint256 _l2GasLimit,
                uint256 _l2GasPerPubdataByteLimit,
                bytes[] calldata _factoryDeps,
                address _refundRecipient
            ) external payable returns (bytes32 canonicalTxHash);
            /// @notice Finalize the withdrawal and release funds
            /// @param _l2BatchNumber The L2 batch number where the withdrawal was processed
            /// @param _l2MessageIndex The position in the L2 logs Merkle tree of the l2Log that was sent with the message
            /// @param _l2TxNumberInBatch The L2 transaction number in a batch, in which the log was sent
            /// @param _message The L2 withdraw data, stored in an L2 -> L1 message
            /// @param _merkleProof The Merkle proof of the inclusion L2 -> L1 message about withdrawal initialization
            function finalizeEthWithdrawal(
                uint256 _l2BatchNumber,
                uint256 _l2MessageIndex,
                uint16 _l2TxNumberInBatch,
                bytes calldata _message,
                bytes32[] calldata _merkleProof
            ) external;
            /// @notice Estimates the cost in Ether of requesting execution of an L2 transaction from L1
            /// @param _gasPrice expected L1 gas price at which the user requests the transaction execution
            /// @param _l2GasLimit Maximum amount of L2 gas that transaction can consume during execution on L2
            /// @param _l2GasPerPubdataByteLimit The maximum amount of L2 gas that the operator may charge the user for a single byte of pubdata.
            /// @return The estimated ETH spent on L2 gas for the transaction
            function l2TransactionBaseCost(
                uint256 _gasPrice,
                uint256 _l2GasLimit,
                uint256 _l2GasPerPubdataByteLimit
            ) external view returns (uint256);
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        interface IZkSync {
            /// @notice Update secondary chain status
            /// @param _gateway The secondary chain gateway
            /// @param _active Active flag
            function setSecondaryChainGateway(address _gateway, bool _active) external;
            /// @notice Receive sync status from secondary chain
            /// @param _secondaryChainGateway The secondary chain gateway address
            /// @param _newTotalSyncedPriorityTxs New sync point
            /// @param _syncHash New sync hash
            /// @param _forwardEthAmount The difference eth amount between two sync points
            function syncL2Requests(
                address _secondaryChainGateway,
                uint256 _newTotalSyncedPriorityTxs,
                bytes32 _syncHash,
                uint256 _forwardEthAmount
            ) external payable;
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        import {UncheckedMath} from "../../common/libraries/UncheckedMath.sol";
        /// @author Matter Labs
        /// @custom:security-contact [email protected]
        library Merkle {
            using UncheckedMath for uint256;
            /// @dev Calculate Merkle root by the provided Merkle proof.
            /// NOTE: When using this function, check that the _path length is equal to the tree height to prevent shorter/longer paths attack
            /// @param _path Merkle path from the leaf to the root
            /// @param _index Leaf index in the tree
            /// @param _itemHash Hash of leaf content
            /// @return The Merkle root
            function calculateRoot(
                bytes32[] calldata _path,
                uint256 _index,
                bytes32 _itemHash
            ) internal pure returns (bytes32) {
                uint256 pathLength = _path.length;
                require(pathLength > 0, "xc");
                require(pathLength < 256, "bt");
                require(_index < (1 << pathLength), "px");
                bytes32 currentHash = _itemHash;
                for (uint256 i; i < pathLength; i = i.uncheckedInc()) {
                    currentHash = (_index % 2 == 0)
                        ? _efficientHash(currentHash, _path[i])
                        : _efficientHash(_path[i], currentHash);
                    _index /= 2;
                }
                return currentHash;
            }
            /// @dev Keccak hash of the concatenation of two 32-byte words
            function _efficientHash(bytes32 _lhs, bytes32 _rhs) private pure returns (bytes32 result) {
                assembly {
                    mstore(0x00, _lhs)
                    mstore(0x20, _rhs)
                    result := keccak256(0x00, 0x40)
                }
            }
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
        import {IMailbox} from "../interfaces/IMailbox.sol";
        import {TX_SLOT_OVERHEAD_L2_GAS, MEMORY_OVERHEAD_GAS, L1_TX_INTRINSIC_L2_GAS, L1_TX_DELTA_544_ENCODING_BYTES, L1_TX_DELTA_FACTORY_DEPS_L2_GAS, L1_TX_MIN_L2_GAS_BASE, L1_TX_INTRINSIC_PUBDATA, L1_TX_DELTA_FACTORY_DEPS_PUBDATA, MAX_GAS_PER_TRANSACTION} from "../Config.sol";
        /// @title zkSync Library for validating L1 -> L2 transactions
        /// @author Matter Labs
        /// @custom:security-contact [email protected]
        library TransactionValidator {
            /// @dev Used to validate key properties of an L1->L2 transaction
            /// @param _transaction The transaction to validate
            /// @param _encoded The abi encoded bytes of the transaction
            /// @param _priorityTxMaxGasLimit The max gas limit, generally provided from Storage.sol
            /// @param _priorityTxMaxPubdata The maximal amount of pubdata that a single L1->L2 transaction can emit
            function validateL1ToL2Transaction(
                IMailbox.L2CanonicalTransaction memory _transaction,
                bytes memory _encoded,
                uint256 _priorityTxMaxGasLimit,
                uint256 _priorityTxMaxPubdata
            ) internal pure {
                uint256 l2GasForTxBody = getTransactionBodyGasLimit(_transaction.gasLimit, _encoded.length);
                // Ensuring that the transaction is provable
                require(l2GasForTxBody <= _priorityTxMaxGasLimit, "ui");
                // Ensuring that the transaction cannot output more pubdata than is processable
                require(l2GasForTxBody / _transaction.gasPerPubdataByteLimit <= _priorityTxMaxPubdata, "uk");
                // Ensuring that the transaction covers the minimal costs for its processing:
                // hashing its content, publishing the factory dependencies, etc.
                require(
                    getMinimalPriorityTransactionGasLimit(
                        _encoded.length,
                        _transaction.factoryDeps.length,
                        _transaction.gasPerPubdataByteLimit
                    ) <= l2GasForTxBody,
                    "up"
                );
            }
            /// @dev Used to validate upgrade transactions
            /// @param _transaction The transaction to validate
            function validateUpgradeTransaction(IMailbox.L2CanonicalTransaction memory _transaction) internal pure {
                // Restrict from to be within system contract range (0...2^16 - 1)
                require(_transaction.from <= type(uint16).max, "ua");
                require(_transaction.to <= type(uint160).max, "ub");
                require(_transaction.paymaster == 0, "uc");
                require(_transaction.value == 0, "ud");
                require(_transaction.maxFeePerGas == 0, "uq");
                require(_transaction.maxPriorityFeePerGas == 0, "ux");
                require(_transaction.reserved[0] == 0, "ue");
                require(_transaction.reserved[1] <= type(uint160).max, "uf");
                require(_transaction.reserved[2] == 0, "ug");
                require(_transaction.reserved[3] == 0, "uo");
                require(_transaction.signature.length == 0, "uh");
                require(_transaction.paymasterInput.length == 0, "ul");
                require(_transaction.reservedDynamic.length == 0, "um");
            }
            /// @dev Calculates the approximate minimum gas limit required for executing a priority transaction.
            /// @param _encodingLength The length of the priority transaction encoding in bytes.
            /// @param _numberOfFactoryDependencies The number of new factory dependencies that will be added.
            /// @param _l2GasPricePerPubdata The L2 gas price for publishing the priority transaction on L2.
            /// @return The minimum gas limit required to execute the priority transaction.
            /// Note: The calculation includes the main cost of the priority transaction, however, in reality, the operator can spend a little more gas on overheads.
            function getMinimalPriorityTransactionGasLimit(
                uint256 _encodingLength,
                uint256 _numberOfFactoryDependencies,
                uint256 _l2GasPricePerPubdata
            ) internal pure returns (uint256) {
                uint256 costForComputation;
                {
                    // Adding the intrinsic cost for the transaction, i.e. auxiliary prices which cannot be easily accounted for
                    costForComputation = L1_TX_INTRINSIC_L2_GAS;
                    // Taking into account the hashing costs that depend on the length of the transaction
                    // Note that L1_TX_DELTA_544_ENCODING_BYTES is the delta in the price for every 544 bytes of
                    // the transaction's encoding. It is taken as LCM between 136 and 32 (the length for each keccak256 round
                    // and the size of each new encoding word).
                    costForComputation += Math.ceilDiv(_encodingLength * L1_TX_DELTA_544_ENCODING_BYTES, 544);
                    // Taking into the account the additional costs of providing new factory dependencies
                    costForComputation += _numberOfFactoryDependencies * L1_TX_DELTA_FACTORY_DEPS_L2_GAS;
                    // There is a minimal amount of computational L2 gas that the transaction should cover
                    costForComputation = Math.max(costForComputation, L1_TX_MIN_L2_GAS_BASE);
                }
                uint256 costForPubdata = 0;
                {
                    // Adding the intrinsic cost for the transaction, i.e. auxiliary prices which cannot be easily accounted for
                    costForPubdata = L1_TX_INTRINSIC_PUBDATA * _l2GasPricePerPubdata;
                    // Taking into the account the additional costs of providing new factory dependencies
                    costForPubdata += _numberOfFactoryDependencies * L1_TX_DELTA_FACTORY_DEPS_PUBDATA * _l2GasPricePerPubdata;
                }
                return costForComputation + costForPubdata;
            }
            /// @notice Based on the full L2 gas limit (that includes the batch overhead) and other
            /// properties of the transaction, returns the l2GasLimit for the body of the transaction (the actual execution).
            /// @param _totalGasLimit The L2 gas limit that includes both the overhead for processing the batch
            /// and the L2 gas needed to process the transaction itself (i.e. the actual l2GasLimit that will be used for the transaction).
            /// @param _encodingLength The length of the ABI-encoding of the transaction.
            function getTransactionBodyGasLimit(
                uint256 _totalGasLimit,
                uint256 _encodingLength
            ) internal pure returns (uint256 txBodyGasLimit) {
                uint256 overhead = getOverheadForTransaction(_encodingLength);
                require(_totalGasLimit >= overhead, "my"); // provided gas limit doesn't cover transaction overhead
                unchecked {
                    // We enforce the fact that `_totalGasLimit >= overhead` explicitly above.
                    txBodyGasLimit = _totalGasLimit - overhead;
                }
            }
            /// @notice Based on the total L2 gas limit and several other parameters of the transaction
            /// returns the part of the L2 gas that will be spent on the batch's overhead.
            /// @dev The details of how this function works can be checked in the documentation
            /// of the fee model of zkSync. The appropriate comments are also present
            /// in the Rust implementation description of function `get_maximal_allowed_overhead`.
            /// @param _encodingLength The length of the binary encoding of the transaction in bytes
            function getOverheadForTransaction(
                uint256 _encodingLength
            ) internal pure returns (uint256 batchOverheadForTransaction) {
                // The overhead from taking up the transaction's slot
                batchOverheadForTransaction = TX_SLOT_OVERHEAD_L2_GAS;
                // The overhead for occupying the bootloader memory can be derived from encoded_len
                uint256 overheadForLength = MEMORY_OVERHEAD_GAS * _encodingLength;
                batchOverheadForTransaction = Math.max(batchOverheadForTransaction, overheadForLength);
            }
        }
        // SPDX-License-Identifier: MIT
        pragma solidity ^0.8.0;
        /// @dev The log passed from L2
        /// @param l2ShardId The shard identifier, 0 - rollup, 1 - porter. All other values are not used but are reserved for
        /// the future
        /// @param isService A boolean flag that is part of the log along with `key`, `value`, and `sender` address.
        /// This field is required formally but does not have any special meaning.
        /// @param txNumberInBatch The L2 transaction number in the batch, in which the log was sent
        /// @param sender The L2 address which sent the log
        /// @param key The 32 bytes of information that was sent in the log
        /// @param value The 32 bytes of information that was sent in the log
        // Both `key` and `value` are arbitrary 32-bytes selected by the log sender
        struct L2Log {
            uint8 l2ShardId;
            bool isService;
            uint16 txNumberInBatch;
            address sender;
            bytes32 key;
            bytes32 value;
        }
        /// @dev An arbitrary length message passed from L2
        /// @notice Under the hood it is `L2Log` sent from the special system L2 contract
        /// @param txNumberInBatch The L2 transaction number in the batch, in which the message was sent
        /// @param sender The address of the L2 account from which the message was passed
        /// @param data An arbitrary length message
        struct L2Message {
            uint16 txNumberInBatch;
            address sender;
            bytes data;
        }
        /// @notice The struct that describes whether users will be charged for pubdata for L1->L2 transactions.
        /// @param Rollup The users are charged for pubdata & it is priced based on the gas price on Ethereum.
        /// @param Validium The pubdata is considered free with regard to the L1 gas price.
        enum PubdataPricingMode {
            Rollup,
            Validium
        }
        /// @notice The fee params for L1->L2 transactions for the network.
        /// @param pubdataPricingMode How the users will charged for pubdata in L1->L2 transactions.
        /// @param batchOverheadL1Gas The amount of L1 gas required to process the batch (except for the calldata).
        /// @param maxPubdataPerBatch The maximal number of pubdata that can be emitted per batch.
        /// @param priorityTxMaxPubdata The maximal amount of pubdata a priority transaction is allowed to publish.
        /// It can be slightly less than maxPubdataPerBatch in order to have some margin for the bootloader execution.
        /// @param minimalL2GasPrice The minimal L2 gas price to be used by L1->L2 transactions. It should represent
        /// the price that a single unit of compute costs.
        struct FeeParams {
            PubdataPricingMode pubdataPricingMode;
            uint32 batchOverheadL1Gas;
            uint32 maxPubdataPerBatch;
            uint32 maxL2GasPerBatch;
            uint32 priorityTxMaxPubdata;
            uint64 minimalL2GasPrice;
        }
        /// @dev The sync status for priority op of secondary chain
        /// @param hash The cumulative canonicalTxHash
        /// @param amount The cumulative l2 value
        struct SecondaryChainSyncStatus {
            bytes32 hash;
            uint256 amount;
        }
        

        File 3 of 4: ERC1967Proxy
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
        pragma solidity ^0.8.20;
        import {Context} from "../utils/Context.sol";
        /**
         * @dev Contract module which provides a basic access control mechanism, where
         * there is an account (an owner) that can be granted exclusive access to
         * specific functions.
         *
         * 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);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1967.sol)
        pragma solidity ^0.8.20;
        /**
         * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
         */
        interface IERC1967 {
            /**
             * @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);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/BeaconProxy.sol)
        pragma solidity ^0.8.20;
        import {IBeacon} from "./IBeacon.sol";
        import {Proxy} from "../Proxy.sol";
        import {ERC1967Utils} from "../ERC1967/ERC1967Utils.sol";
        /**
         * @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;
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)
        pragma solidity ^0.8.20;
        /**
         * @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);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/UpgradeableBeacon.sol)
        pragma solidity ^0.8.20;
        import {IBeacon} from "./IBeacon.sol";
        import {Ownable} from "../../access/Ownable.sol";
        /**
         * @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);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Proxy.sol)
        pragma solidity ^0.8.20;
        import {Proxy} from "../Proxy.sol";
        import {ERC1967Utils} from "./ERC1967Utils.sol";
        /**
         * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
         * implementation address that can be changed. This address is stored in storage in the location specified by
         * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
         * implementation behind the proxy.
         */
        contract ERC1967Proxy is Proxy {
            /**
             * @dev Initializes the upgradeable proxy with an initial implementation specified by `implementation`.
             *
             * If `_data` is nonempty, it's used as data in a delegate call to `implementation`. This will typically be an
             * encoded function call, and allows initializing the storage of the proxy like a Solidity constructor.
             *
             * Requirements:
             *
             * - If `data` is empty, `msg.value` must be zero.
             */
            constructor(address implementation, bytes memory _data) payable {
                ERC1967Utils.upgradeToAndCall(implementation, _data);
            }
            /**
             * @dev Returns the current implementation address.
             *
             * 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.
             * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
             */
            function _implementation() internal view virtual override returns (address) {
                return ERC1967Utils.getImplementation();
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol)
        pragma solidity ^0.8.20;
        import {IBeacon} from "../beacon/IBeacon.sol";
        import {Address} from "../../utils/Address.sol";
        import {StorageSlot} from "../../utils/StorageSlot.sol";
        /**
         * @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();
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/Proxy.sol)
        pragma solidity ^0.8.20;
        /**
         * @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();
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/transparent/ProxyAdmin.sol)
        pragma solidity ^0.8.20;
        import {ITransparentUpgradeableProxy} from "./TransparentUpgradeableProxy.sol";
        import {Ownable} from "../../access/Ownable.sol";
        /**
         * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an
         * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}.
         */
        contract ProxyAdmin is Ownable {
            /**
             * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgrade(address)`
             * and `upgradeAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
             * while `upgradeAndCall` will invoke the `receive` function if the second argument is the empty byte string.
             * If the getter returns `"5.0.0"`, only `upgradeAndCall(address,bytes)` is present, and the second argument must
             * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
             * during an upgrade.
             */
            string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";
            /**
             * @dev Sets the initial owner who can perform upgrades.
             */
            constructor(address initialOwner) Ownable(initialOwner) {}
            /**
             * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation.
             * See {TransparentUpgradeableProxy-_dispatchUpgradeToAndCall}.
             *
             * Requirements:
             *
             * - This contract must be the admin of `proxy`.
             * - If `data` is empty, `msg.value` must be zero.
             */
            function upgradeAndCall(
                ITransparentUpgradeableProxy proxy,
                address implementation,
                bytes memory data
            ) public payable virtual onlyOwner {
                proxy.upgradeToAndCall{value: msg.value}(implementation, data);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (proxy/transparent/TransparentUpgradeableProxy.sol)
        pragma solidity ^0.8.20;
        import {ERC1967Utils} from "../ERC1967/ERC1967Utils.sol";
        import {ERC1967Proxy} from "../ERC1967/ERC1967Proxy.sol";
        import {IERC1967} from "../../interfaces/IERC1967.sol";
        import {ProxyAdmin} from "./ProxyAdmin.sol";
        /**
         * @dev Interface for {TransparentUpgradeableProxy}. In order to implement transparency, {TransparentUpgradeableProxy}
         * does not implement this interface directly, and its upgradeability mechanism is implemented by an internal dispatch
         * mechanism. The compiler is unaware that these functions are implemented by {TransparentUpgradeableProxy} and will not
         * include them in the ABI so this interface must be used to interact with it.
         */
        interface ITransparentUpgradeableProxy is IERC1967 {
            function upgradeToAndCall(address, bytes calldata) external payable;
        }
        /**
         * @dev This contract implements a proxy that is upgradeable through an associated {ProxyAdmin} instance.
         *
         * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
         * clashing], which can potentially be used in an attack, this contract uses the
         * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
         * things that go hand in hand:
         *
         * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
         * that call matches the {ITransparentUpgradeableProxy-upgradeToAndCall} function exposed by the proxy itself.
         * 2. If the admin calls the proxy, it can call the `upgradeToAndCall` function but any other call won't be forwarded to
         * the implementation. If the admin tries to call a function on the implementation it will fail with an error indicating
         * the proxy admin cannot fallback to the target implementation.
         *
         * These properties mean that the admin account can only be used for upgrading the proxy, so it's best if it's a
         * dedicated account that is not used for anything else. This will avoid headaches due to sudden errors when trying to
         * call a function from the proxy implementation. For this reason, the proxy deploys an instance of {ProxyAdmin} and
         * allows upgrades only if they come through it. You should think of the `ProxyAdmin` instance as the administrative
         * interface of the proxy, including the ability to change who can trigger upgrades by transferring ownership.
         *
         * NOTE: The real interface of this proxy is that defined in `ITransparentUpgradeableProxy`. This contract does not
         * inherit from that interface, and instead `upgradeToAndCall` is implicitly implemented using a custom dispatch
         * mechanism in `_fallback`. Consequently, the compiler will not produce an ABI for this contract. This is necessary to
         * fully implement transparency without decoding reverts caused by selector clashes between the proxy and the
         * implementation.
         *
         * NOTE: This proxy does not inherit from {Context} deliberately. The {ProxyAdmin} of this contract won't send a
         * meta-transaction in any way, and any other meta-transaction setup should be made in the implementation contract.
         *
         * IMPORTANT: This contract avoids unnecessary storage reads by setting the admin only during construction as an
         * immutable variable, preventing any changes thereafter. However, the admin slot defined in ERC-1967 can still be
         * overwritten by the implementation logic pointed to by this proxy. In such cases, the contract may end up in an
         * undesirable state where the admin slot is different from the actual admin.
         *
         * WARNING: It is not recommended to extend this contract to add additional external functions. If you do so, the
         * compiler will not check that there are no selector conflicts, due to the note above. A selector clash between any new
         * function and the functions declared in {ITransparentUpgradeableProxy} will be resolved in favor of the new one. This
         * could render the `upgradeToAndCall` function inaccessible, preventing upgradeability and compromising transparency.
         */
        contract TransparentUpgradeableProxy is ERC1967Proxy {
            // An immutable address for the admin to avoid unnecessary SLOADs before each call
            // at the expense of removing the ability to change the admin once it's set.
            // This is acceptable if the admin is always a ProxyAdmin instance or similar contract
            // with its own ability to transfer the permissions to another account.
            address private immutable _admin;
            /**
             * @dev The proxy caller is the current admin, and can't fallback to the proxy target.
             */
            error ProxyDeniedAdminAccess();
            /**
             * @dev Initializes an upgradeable proxy managed by an instance of a {ProxyAdmin} with an `initialOwner`,
             * backed by the implementation at `_logic`, and optionally initialized with `_data` as explained in
             * {ERC1967Proxy-constructor}.
             */
            constructor(address _logic, address initialOwner, bytes memory _data) payable ERC1967Proxy(_logic, _data) {
                _admin = address(new ProxyAdmin(initialOwner));
                // Set the storage value and emit an event for ERC-1967 compatibility
                ERC1967Utils.changeAdmin(_proxyAdmin());
            }
            /**
             * @dev Returns the admin of this proxy.
             */
            function _proxyAdmin() internal virtual returns (address) {
                return _admin;
            }
            /**
             * @dev If caller is the admin process the call internally, otherwise transparently fallback to the proxy behavior.
             */
            function _fallback() internal virtual override {
                if (msg.sender == _proxyAdmin()) {
                    if (msg.sig != ITransparentUpgradeableProxy.upgradeToAndCall.selector) {
                        revert ProxyDeniedAdminAccess();
                    } else {
                        _dispatchUpgradeToAndCall();
                    }
                } else {
                    super._fallback();
                }
            }
            /**
             * @dev Upgrade the implementation of the proxy. See {ERC1967Utils-upgradeToAndCall}.
             *
             * Requirements:
             *
             * - If `data` is empty, `msg.value` must be zero.
             */
            function _dispatchUpgradeToAndCall() private {
                (address newImplementation, bytes memory data) = abi.decode(msg.data[4:], (address, bytes));
                ERC1967Utils.upgradeToAndCall(newImplementation, data);
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)
        pragma solidity ^0.8.20;
        /**
         * @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();
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
        pragma solidity ^0.8.20;
        /**
         * @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;
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)
        // This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
        pragma solidity ^0.8.20;
        /**
         * @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
                }
            }
        }
        

        File 4 of 4: EthereumGateway
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
        pragma solidity ^0.8.0;
        import "../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.
         *
         * By default, the owner account will be the one that deploys the contract. This
         * can later be changed with {transferOwnership}.
         *
         * This module is used through inheritance. It will make available the modifier
         * `onlyOwner`, which can be applied to your functions to restrict their use to
         * the owner.
         */
        abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
            address private _owner;
            event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
            /**
             * @dev Initializes the contract setting the deployer as the initial owner.
             */
            function __Ownable_init() internal onlyInitializing {
                __Ownable_init_unchained();
            }
            function __Ownable_init_unchained() internal onlyInitializing {
                _transferOwnership(_msgSender());
            }
            /**
             * @dev Throws if called by any account other than the owner.
             */
            modifier onlyOwner() {
                _checkOwner();
                _;
            }
            /**
             * @dev Returns the address of the current owner.
             */
            function owner() public view virtual returns (address) {
                return _owner;
            }
            /**
             * @dev Throws if the sender is not the owner.
             */
            function _checkOwner() internal view virtual {
                require(owner() == _msgSender(), "Ownable: caller is not the owner");
            }
            /**
             * @dev Leaves the contract without owner. It will not be possible to call
             * `onlyOwner` functions. Can only be called by the current owner.
             *
             * NOTE: Renouncing ownership will leave the contract without an owner,
             * thereby disabling any functionality that is only available to the owner.
             */
            function renounceOwnership() public virtual onlyOwner {
                _transferOwnership(address(0));
            }
            /**
             * @dev Transfers ownership of the contract to a new account (`newOwner`).
             * Can only be called by the current owner.
             */
            function transferOwnership(address newOwner) public virtual onlyOwner {
                require(newOwner != address(0), "Ownable: new owner is the zero address");
                _transferOwnership(newOwner);
            }
            /**
             * @dev Transfers ownership of the contract to a new account (`newOwner`).
             * Internal function without access restriction.
             */
            function _transferOwnership(address newOwner) internal virtual {
                address oldOwner = _owner;
                _owner = newOwner;
                emit OwnershipTransferred(oldOwner, newOwner);
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[49] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
         * proxy whose upgrades are fully controlled by the current implementation.
         */
        interface IERC1822ProxiableUpgradeable {
            /**
             * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
             * address.
             *
             * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
             * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
             * function revert if invoked through a proxy.
             */
            function proxiableUUID() external view returns (bytes32);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC1967.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
         *
         * _Available since v4.8.3._
         */
        interface IERC1967Upgradeable {
            /**
             * @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);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
        pragma solidity ^0.8.0;
        /**
         * @dev This is the interface that {BeaconProxy} expects of its beacon.
         */
        interface IBeaconUpgradeable {
            /**
             * @dev Must return an address that can be used as a delegate call target.
             *
             * {BeaconProxy} will check that this address is a contract.
             */
            function implementation() external view returns (address);
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (proxy/ERC1967/ERC1967Upgrade.sol)
        pragma solidity ^0.8.2;
        import "../beacon/IBeaconUpgradeable.sol";
        import "../../interfaces/IERC1967Upgradeable.sol";
        import "../../interfaces/draft-IERC1822Upgradeable.sol";
        import "../../utils/AddressUpgradeable.sol";
        import "../../utils/StorageSlotUpgradeable.sol";
        import {Initializable} from "../utils/Initializable.sol";
        /**
         * @dev This abstract contract provides getters and event emitting update functions for
         * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
         *
         * _Available since v4.1._
         */
        abstract contract ERC1967UpgradeUpgradeable is Initializable, IERC1967Upgradeable {
            // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
            bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
            /**
             * @dev Storage slot with the address of the current implementation.
             * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
             * validated in the constructor.
             */
            bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
            function __ERC1967Upgrade_init() internal onlyInitializing {
            }
            function __ERC1967Upgrade_init_unchained() internal onlyInitializing {
            }
            /**
             * @dev Returns the current implementation address.
             */
            function _getImplementation() internal view returns (address) {
                return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;
            }
            /**
             * @dev Stores a new address in the EIP1967 implementation slot.
             */
            function _setImplementation(address newImplementation) private {
                require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract");
                StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
            }
            /**
             * @dev Perform implementation upgrade
             *
             * Emits an {Upgraded} event.
             */
            function _upgradeTo(address newImplementation) internal {
                _setImplementation(newImplementation);
                emit Upgraded(newImplementation);
            }
            /**
             * @dev Perform implementation upgrade with additional setup call.
             *
             * Emits an {Upgraded} event.
             */
            function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal {
                _upgradeTo(newImplementation);
                if (data.length > 0 || forceCall) {
                    AddressUpgradeable.functionDelegateCall(newImplementation, data);
                }
            }
            /**
             * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
             *
             * Emits an {Upgraded} event.
             */
            function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal {
                // Upgrades from old implementations will perform a rollback test. This test requires the new
                // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
                // this special case will break upgrade paths from old UUPS implementation to new ones.
                if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {
                    _setImplementation(newImplementation);
                } else {
                    try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                        require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
                    } catch {
                        revert("ERC1967Upgrade: new implementation is not UUPS");
                    }
                    _upgradeToAndCall(newImplementation, data, forceCall);
                }
            }
            /**
             * @dev Storage slot with the admin of the contract.
             * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
             * validated in the constructor.
             */
            bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
            /**
             * @dev Returns the current admin.
             */
            function _getAdmin() internal view returns (address) {
                return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;
            }
            /**
             * @dev Stores a new address in the EIP1967 admin slot.
             */
            function _setAdmin(address newAdmin) private {
                require(newAdmin != address(0), "ERC1967: new admin is the zero address");
                StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
            }
            /**
             * @dev Changes the admin of the proxy.
             *
             * Emits an {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 bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
             */
            bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
            /**
             * @dev Returns the current beacon.
             */
            function _getBeacon() internal view returns (address) {
                return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;
            }
            /**
             * @dev Stores a new beacon in the EIP1967 beacon slot.
             */
            function _setBeacon(address newBeacon) private {
                require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract");
                require(
                    AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),
                    "ERC1967: beacon implementation is not a contract"
                );
                StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;
            }
            /**
             * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
             * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
             *
             * Emits a {BeaconUpgraded} event.
             */
            function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal {
                _setBeacon(newBeacon);
                emit BeaconUpgraded(newBeacon);
                if (data.length > 0 || forceCall) {
                    AddressUpgradeable.functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);
                }
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
        pragma solidity ^0.8.2;
        import "../../utils/AddressUpgradeable.sol";
        /**
         * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
         * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
         * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
         * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
         *
         * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
         * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
         * case an upgrade adds a module that needs to be initialized.
         *
         * For example:
         *
         * [.hljs-theme-light.nopadding]
         * ```solidity
         * contract MyToken is ERC20Upgradeable {
         *     function initialize() initializer public {
         *         __ERC20_init("MyToken", "MTK");
         *     }
         * }
         *
         * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
         *     function initializeV2() reinitializer(2) public {
         *         __ERC20Permit_init("MyToken");
         *     }
         * }
         * ```
         *
         * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
         * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
         *
         * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
         * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
         *
         * [CAUTION]
         * ====
         * Avoid leaving a contract uninitialized.
         *
         * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
         * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
         * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
         *
         * [.hljs-theme-light.nopadding]
         * ```
         * /// @custom:oz-upgrades-unsafe-allow constructor
         * constructor() {
         *     _disableInitializers();
         * }
         * ```
         * ====
         */
        abstract contract Initializable {
            /**
             * @dev Indicates that the contract has been initialized.
             * @custom:oz-retyped-from bool
             */
            uint8 private _initialized;
            /**
             * @dev Indicates that the contract is in the process of being initialized.
             */
            bool private _initializing;
            /**
             * @dev Triggered when the contract has been initialized or reinitialized.
             */
            event Initialized(uint8 version);
            /**
             * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
             * `onlyInitializing` functions can be used to initialize parent contracts.
             *
             * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
             * constructor.
             *
             * Emits an {Initialized} event.
             */
            modifier initializer() {
                bool isTopLevelCall = !_initializing;
                require(
                    (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
                    "Initializable: contract is already initialized"
                );
                _initialized = 1;
                if (isTopLevelCall) {
                    _initializing = true;
                }
                _;
                if (isTopLevelCall) {
                    _initializing = false;
                    emit Initialized(1);
                }
            }
            /**
             * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
             * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
             * used to initialize parent contracts.
             *
             * A reinitializer may be used after the original initialization step. This is essential to configure modules that
             * are added through upgrades and that require initialization.
             *
             * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
             * cannot be nested. If one is invoked in the context of another, execution will revert.
             *
             * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
             * a contract, executing them in the right order is up to the developer or operator.
             *
             * WARNING: setting the version to 255 will prevent any future reinitialization.
             *
             * Emits an {Initialized} event.
             */
            modifier reinitializer(uint8 version) {
                require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
                _initialized = version;
                _initializing = true;
                _;
                _initializing = false;
                emit Initialized(version);
            }
            /**
             * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
             * {initializer} and {reinitializer} modifiers, directly or indirectly.
             */
            modifier onlyInitializing() {
                require(_initializing, "Initializable: contract is not initializing");
                _;
            }
            /**
             * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
             * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
             * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
             * through proxies.
             *
             * Emits an {Initialized} event the first time it is successfully executed.
             */
            function _disableInitializers() internal virtual {
                require(!_initializing, "Initializable: contract is initializing");
                if (_initialized != type(uint8).max) {
                    _initialized = type(uint8).max;
                    emit Initialized(type(uint8).max);
                }
            }
            /**
             * @dev Returns the highest version that has been initialized. See {reinitializer}.
             */
            function _getInitializedVersion() internal view returns (uint8) {
                return _initialized;
            }
            /**
             * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
             */
            function _isInitializing() internal view returns (bool) {
                return _initializing;
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/UUPSUpgradeable.sol)
        pragma solidity ^0.8.0;
        import "../../interfaces/draft-IERC1822Upgradeable.sol";
        import "../ERC1967/ERC1967UpgradeUpgradeable.sol";
        import {Initializable} from "./Initializable.sol";
        /**
         * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
         * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
         *
         * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
         * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
         * `UUPSUpgradeable` with a custom implementation of upgrades.
         *
         * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
         *
         * _Available since v4.1._
         */
        abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {
            /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
            address private immutable __self = address(this);
            /**
             * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
             * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
             * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
             * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
             * fail.
             */
            modifier onlyProxy() {
                require(address(this) != __self, "Function must be called through delegatecall");
                require(_getImplementation() == __self, "Function must be called through active proxy");
                _;
            }
            /**
             * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
             * callable on the implementing contract but not through proxies.
             */
            modifier notDelegated() {
                require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall");
                _;
            }
            function __UUPSUpgradeable_init() internal onlyInitializing {
            }
            function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
            }
            /**
             * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
             * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
             *
             * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
             * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
             * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
             */
            function proxiableUUID() external view virtual override notDelegated returns (bytes32) {
                return _IMPLEMENTATION_SLOT;
            }
            /**
             * @dev Upgrade the implementation of the proxy to `newImplementation`.
             *
             * Calls {_authorizeUpgrade}.
             *
             * Emits an {Upgraded} event.
             *
             * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
             */
            function upgradeTo(address newImplementation) public virtual onlyProxy {
                _authorizeUpgrade(newImplementation);
                _upgradeToAndCallUUPS(newImplementation, new bytes(0), false);
            }
            /**
             * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
             * encoded in `data`.
             *
             * Calls {_authorizeUpgrade}.
             *
             * Emits an {Upgraded} event.
             *
             * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
             */
            function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
                _authorizeUpgrade(newImplementation);
                _upgradeToAndCallUUPS(newImplementation, data, true);
            }
            /**
             * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
             * {upgradeTo} and {upgradeToAndCall}.
             *
             * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
             *
             * ```solidity
             * function _authorizeUpgrade(address) internal override onlyOwner {}
             * ```
             */
            function _authorizeUpgrade(address newImplementation) internal virtual;
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
        pragma solidity ^0.8.0;
        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;
            uint256 private _status;
            function __ReentrancyGuard_init() internal onlyInitializing {
                __ReentrancyGuard_init_unchained();
            }
            function __ReentrancyGuard_init_unchained() internal onlyInitializing {
                _status = _NOT_ENTERED;
            }
            /**
             * @dev Prevents a contract from calling itself, directly or indirectly.
             * Calling a `nonReentrant` function from another `nonReentrant`
             * function is not supported. It is possible to prevent this from happening
             * by making the `nonReentrant` function external, and making it call a
             * `private` function that does the actual work.
             */
            modifier nonReentrant() {
                _nonReentrantBefore();
                _;
                _nonReentrantAfter();
            }
            function _nonReentrantBefore() private {
                // On the first call to nonReentrant, _status will be _NOT_ENTERED
                require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
                // Any calls to nonReentrant after this point will fail
                _status = _ENTERED;
            }
            function _nonReentrantAfter() private {
                // By storing the original value once again, a refund is triggered (see
                // https://eips.ethereum.org/EIPS/eip-2200)
                _status = _NOT_ENTERED;
            }
            /**
             * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
             * `nonReentrant` function in the call stack.
             */
            function _reentrancyGuardEntered() internal view returns (bool) {
                return _status == _ENTERED;
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[49] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
        pragma solidity ^0.8.1;
        /**
         * @dev Collection of functions related to the address type
         */
        library AddressUpgradeable {
            /**
             * @dev Returns true if `account` is a contract.
             *
             * [IMPORTANT]
             * ====
             * It is unsafe to assume that an address for which this function returns
             * false is an externally-owned account (EOA) and not a contract.
             *
             * Among others, `isContract` will return false for the following
             * types of addresses:
             *
             *  - an externally-owned account
             *  - a contract in construction
             *  - an address where a contract will be created
             *  - an address where a contract lived, but was destroyed
             *
             * Furthermore, `isContract` will also return true if the target contract within
             * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
             * which only has an effect at the end of a transaction.
             * ====
             *
             * [IMPORTANT]
             * ====
             * You shouldn't rely on `isContract` to protect against flash loan attacks!
             *
             * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
             * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
             * constructor.
             * ====
             */
            function isContract(address account) internal view returns (bool) {
                // This method relies on extcodesize/address.code.length, which returns 0
                // for contracts in construction, since the code is only stored at the end
                // of the constructor execution.
                return account.code.length > 0;
            }
            /**
             * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
             * `recipient`, forwarding all available gas and reverting on errors.
             *
             * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
             * of certain opcodes, possibly making contracts go over the 2300 gas limit
             * imposed by `transfer`, making them unable to receive funds via
             * `transfer`. {sendValue} removes this limitation.
             *
             * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
             *
             * IMPORTANT: because control is transferred to `recipient`, care must be
             * taken to not create reentrancy vulnerabilities. Consider using
             * {ReentrancyGuard} or the
             * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
             */
            function sendValue(address payable recipient, uint256 amount) internal {
                require(address(this).balance >= amount, "Address: insufficient balance");
                (bool success, ) = recipient.call{value: amount}("");
                require(success, "Address: unable to send value, recipient may have reverted");
            }
            /**
             * @dev Performs a Solidity function call using a low level `call`. A
             * plain `call` is an unsafe replacement for a function call: use this
             * function instead.
             *
             * If `target` reverts with a revert reason, it is bubbled up by this
             * function (like regular Solidity function calls).
             *
             * Returns the raw returned data. To convert to the expected return value,
             * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
             *
             * Requirements:
             *
             * - `target` must be a contract.
             * - calling `target` with `data` must not revert.
             *
             * _Available since v3.1._
             */
            function functionCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionCallWithValue(target, data, 0, "Address: low-level call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
             * `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                return functionCallWithValue(target, data, 0, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but also transferring `value` wei to `target`.
             *
             * Requirements:
             *
             * - the calling contract must have an ETH balance of at least `value`.
             * - the called Solidity function must be `payable`.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
                return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
            }
            /**
             * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
             * with `errorMessage` as a fallback revert reason when `target` reverts.
             *
             * _Available since v3.1._
             */
            function functionCallWithValue(
                address target,
                bytes memory data,
                uint256 value,
                string memory errorMessage
            ) internal returns (bytes memory) {
                require(address(this).balance >= value, "Address: insufficient balance for call");
                (bool success, bytes memory returndata) = target.call{value: value}(data);
                return verifyCallResultFromTarget(target, success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
                return functionStaticCall(target, data, "Address: low-level static call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a static call.
             *
             * _Available since v3.3._
             */
            function functionStaticCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal view returns (bytes memory) {
                (bool success, bytes memory returndata) = target.staticcall(data);
                return verifyCallResultFromTarget(target, success, returndata, errorMessage);
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
                return functionDelegateCall(target, data, "Address: low-level delegate call failed");
            }
            /**
             * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
             * but performing a delegate call.
             *
             * _Available since v3.4._
             */
            function functionDelegateCall(
                address target,
                bytes memory data,
                string memory errorMessage
            ) internal returns (bytes memory) {
                (bool success, bytes memory returndata) = target.delegatecall(data);
                return verifyCallResultFromTarget(target, success, returndata, errorMessage);
            }
            /**
             * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
             * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
             *
             * _Available since v4.8._
             */
            function verifyCallResultFromTarget(
                address target,
                bool success,
                bytes memory returndata,
                string memory errorMessage
            ) internal view returns (bytes memory) {
                if (success) {
                    if (returndata.length == 0) {
                        // only check isContract if the call was successful and the return data is empty
                        // otherwise we already know that it was a contract
                        require(isContract(target), "Address: call to non-contract");
                    }
                    return returndata;
                } else {
                    _revert(returndata, errorMessage);
                }
            }
            /**
             * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
             * revert reason or using the provided one.
             *
             * _Available since v4.3._
             */
            function verifyCallResult(
                bool success,
                bytes memory returndata,
                string memory errorMessage
            ) internal pure returns (bytes memory) {
                if (success) {
                    return returndata;
                } else {
                    _revert(returndata, errorMessage);
                }
            }
            function _revert(bytes memory returndata, string memory errorMessage) private pure {
                // Look for revert reason and bubble it up if present
                if (returndata.length > 0) {
                    // The easiest way to bubble the revert reason is using memory via assembly
                    /// @solidity memory-safe-assembly
                    assembly {
                        let returndata_size := mload(returndata)
                        revert(add(32, returndata), returndata_size)
                    }
                } else {
                    revert(errorMessage);
                }
            }
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
        pragma solidity ^0.8.0;
        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;
            }
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
        }
        // SPDX-License-Identifier: MIT
        // OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
        // This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
        pragma solidity ^0.8.0;
        /**
         * @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(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
         *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
         *     }
         * }
         * ```
         *
         * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
         * _Available since v4.9 for `string`, `bytes`._
         */
        library StorageSlotUpgradeable {
            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
                }
            }
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
        import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
        import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
        import {IArbitrator} from "../../interfaces/IArbitrator.sol";
        import {L2BaseGateway} from "../L2BaseGateway.sol";
        import {L1BaseGateway} from "../L1BaseGateway.sol";
        contract EthereumGateway is
            L1BaseGateway,
            L2BaseGateway,
            OwnableUpgradeable,
            UUPSUpgradeable,
            ReentrancyGuardUpgradeable
        {
            constructor(IArbitrator _arbitrator, address _zkLink) L1BaseGateway(_arbitrator) L2BaseGateway(_zkLink) {
                _disableInitializers();
            }
            function initialize() external initializer {
                __Ownable_init();
                __UUPSUpgradeable_init();
                __ReentrancyGuard_init();
            }
            function _authorizeUpgrade(address newImplementation) internal override onlyOwner {}
            function getRemoteGateway() external view returns (address) {
                return address(this);
            }
            function sendMessage(uint256 _value, bytes calldata _callData, bytes calldata) external payable onlyArbitrator {
                require(msg.value == _value, "Invalid value");
                // solhint-disable-next-line avoid-low-level-calls
                (bool success, ) = ZKLINK.call{value: _value}(_callData);
                require(success, "Call zkLink failed");
            }
            function sendMessage(uint256 _value, bytes calldata _callData) external payable override onlyZkLink {
                require(msg.value == _value, "Invalid value");
                // Forward message to arbitrator
                ARBITRATOR.receiveMessage{value: _value}(_value, _callData);
                emit L2GatewayMessageSent(_value, _callData);
            }
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        import {IArbitrator} from "../interfaces/IArbitrator.sol";
        import {IL1Gateway} from "../interfaces/IL1Gateway.sol";
        abstract contract L1BaseGateway is IL1Gateway {
            /// @notice The arbitrator to confirm synchronization
            IArbitrator public immutable ARBITRATOR;
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
            /// @dev Modifier to make sure the caller is the known arbitrator.
            modifier onlyArbitrator() {
                require(msg.sender == address(ARBITRATOR), "Not arbitrator");
                _;
            }
            constructor(IArbitrator _arbitrator) {
                ARBITRATOR = _arbitrator;
            }
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        import {IL2Gateway} from "../interfaces/IL2Gateway.sol";
        abstract contract L2BaseGateway is IL2Gateway {
            /// @notice The zkLink contract
            address public immutable ZKLINK;
            /**
             * @dev This empty reserved space is put in place to allow future versions to add new
             * variables without shifting down storage in the inheritance chain.
             * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
             */
            uint256[50] private __gap;
            event L2GatewayMessageSent(uint256 value, bytes callData);
            /// @dev Ensure withdraw come from zkLink
            modifier onlyZkLink() {
                require(msg.sender == ZKLINK, "Not zkLink contract");
                _;
            }
            constructor(address _zkLink) {
                ZKLINK = _zkLink;
            }
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        import {IL1Gateway} from "./IL1Gateway.sol";
        interface IArbitrator {
            /// @notice Receive message from one L1 gateway to another L1 gateway
            /// @param _value The msg value
            /// @param _callData The call data
            function receiveMessage(uint256 _value, bytes calldata _callData) external payable;
            /// @notice Forward message from one L1 gateway to another L1 gateway
            /// @param _gateway The message source gateway
            /// @param _value The msg value
            /// @param _callData The call data
            /// @param _adapterParams Some params need to call canonical message service
            function forwardMessage(
                IL1Gateway _gateway,
                uint256 _value,
                bytes calldata _callData,
                bytes calldata _adapterParams
            ) external payable;
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        interface IGateway {
            /// @return Remote gateway
            function getRemoteGateway() external view returns (address);
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        import {IGateway} from "./IGateway.sol";
        interface IL1Gateway is IGateway {
            /// @notice Send message to remote gateway
            /// @param _value The msg value
            /// @param _callData The call data
            /// @param _adapterParams Some params need to call canonical message service
            function sendMessage(uint256 _value, bytes calldata _callData, bytes calldata _adapterParams) external payable;
        }
        // SPDX-License-Identifier: MIT OR Apache-2.0
        pragma solidity ^0.8.0;
        import {IGateway} from "./IGateway.sol";
        interface IL2Gateway is IGateway {
            /// @notice Send message to remote gateway
            /// @param _value The msg value
            /// @param _callData The call data
            function sendMessage(uint256 _value, bytes calldata _callData) external payable;
        }