Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import {Ownable} from "./oz/access/Ownable.sol";
import {IERC20, ERC20, ERC20Permit, ERC20Votes} from "./oz/token/ERC20/extensions/ERC20Votes.sol";
import {SafeERC20} from "./oz/token/ERC20/utils/SafeERC20.sol";
import {IERC165} from "./oz/utils/introspection/IERC165.sol";
import {Address} from "./oz/utils/Address.sol";

import {OFTV2} from "./lz/token/oft/v2/OFTV2.sol";

import {IBuyTaxReceiver} from "./interfaces/IBuyTaxReceiver.sol";
import {IAntiMevStrategy} from "./interfaces/IAntiMevStrategy.sol";

/**
 * @title BenCoinV2
 * @author Ben Coin Collective
 *
 * BenCoinV2 is an ERC20 token contract with additional features such as taxing, anti-MEV protection and transfer blacklisting.
 *
 * The contract is part of the Ben Coin ecosystem.
 * The owner of this contract has control over functions such as setting taxes, managing whitelists, enabling/disabling features &
 * provides a way to recover tokens accidentally sent to the contract. It is not an upgradeable proxy contract, but can however
 * update logic for the anti-MEV strategy and buy tax receiving.
 *
 * No extra tokens can be minted after deployment, but this is a LayerZero cross chain compatible token contract, and is permitted to burn
 * on the source chain and mint on another, but the overall token count does not change.
 */
contract BenCoinV2 is OFTV2, ERC20Votes {
  using SafeERC20 for IERC20;

  event SetTax(uint buyTax, uint sellTax, bool isTaxing);
  event SetBuyTaxReceiver(address buyTaxReceiver);
  event SetTaxableContract(address taxableContract, bool isTaxable);
  event SetTaxWhitelist(address whitelist, bool isWhitelisted);
  event SetIsAntiMEV(bool isAntiMEV);
  event SetIsTransferBlacklisting(bool isBlacklisting);
  event SetTransferBlacklist(address blacklist, bool isBlacklisted);

  error OnlyMigrator();
  error MigratorSetOnInvalidChain();
  error MaxTaxExceeded();
  error BothAddressesAreContracts();
  error TransferBlacklisted(address);
  error InvalidBuyTaxReceiver();
  error InvalidArrayLength();
  error AlreadyInitialized();

  address private buyTaxReceiver;
  uint16 private buyTax;
  uint16 private sellTax;
  bool private isTaxingEnabled;
  bool private isAntiMEV;
  bool private isBlacklisting;
  bool private isInitialized;
  uint8 private taxFlag = NOT_TAXING;
  mapping(address contractAddress => bool isTaxable) private taxableAddress;
  mapping(address whitelist => bool isWhitelisted) private taxWhitelist; // For certain addresses to be exempt from tax like exchanges

  mapping(address blacklist => bool isBlacklisted) private transferBlacklist;
  IAntiMevStrategy private antiMEVStrategy;

  uint256 private constant MAX_TAX = 10; // 10%
  // Using 1 & 2 instead of 0 to save gas when resetting
  uint8 private constant NOT_TAXING = 1;
  uint8 private constant TAXING = 2;
  uint256 private constant FEE_DENOMINATOR = 10000;
  uint8 private constant SHARED_DECIMALS = 8;

  /**
   * @notice BenCoinV2 contract constructor
   */
  constructor() OFTV2("BEN", "BEN", SHARED_DECIMALS) ERC20Permit("BEN") {}

  /**
   * @notice Initializes the contract
   * @param _lzEndpoint The endpoint for Layer Zero
   * @param _buyTaxReceiver The address to send the buy tax to
   * @param _antiMEVStrategy The anti-MEV strategy to use
   * @param _migrator The migrator contract address for benV1 to benV2 (only used on Ethereum)
   * @param _migratorMintSupply The migrator contract address for benV1 to benV2 (only used on Ethereum)
   * @param _buyTax The buy tax (10000 basis points, so 300 is 3%)
   * @param _sellTax The sell tax (10000 basis points, so 100 is 1%)
   * @param _isTaxingEnabled Whether or not taxing is enabled
   * @param _isAntiMEV Whether or not anti-MEV is enabled
   * @param _isTransferBlacklisting Whether or not transfer blacklisting is enabled
   */
  function initialize(
    address _lzEndpoint,
    address _buyTaxReceiver,
    address _antiMEVStrategy,
    address _migrator,
    uint256 _migratorMintSupply,
    uint256 _buyTax,
    uint256 _sellTax,
    bool _isTaxingEnabled,
    bool _isAntiMEV,
    bool _isTransferBlacklisting
  ) external notInitialized onlyOwner {
    __OFTV2_init(_lzEndpoint);

    _setTax(_buyTax, _sellTax, _isTaxingEnabled);
    _setIsAntiMEV(_isAntiMEV);
    _setIsTransferBlacklisting(_isTransferBlacklisting);
    if (_isTaxingEnabled) {
      _setBuyTaxReceiver(_buyTaxReceiver);
    }

    antiMEVStrategy = IAntiMevStrategy(_antiMEVStrategy);
    isInitialized = true;
    if (_migrator != address(0)) {
      if (
        block.chainid != 1 && // ethereum
        block.chainid != 1337 && // ganache
        block.chainid != 31337 // hardhat
      ) {
        // Migrator can only be set on ethereum as well as local development chain ids like hardhat.
        // This is because the migrator gets minted with the whole supply to distribute during the V1 to V2 migration.
        revert MigratorSetOnInvalidChain();
      }

      // If the migrator is set then mint the total supply of BenV2 tokens to it
      _mint(_migrator, _migratorMintSupply);
    }
  }

  /**
   * @dev Modifier to check if the contract has been initialized
   */
  modifier notInitialized() {
    if (isInitialized) {
      revert AlreadyInitialized();
    }
    _;
  }

  /**
   * @dev Anti-MEV modifier
   * @param _from The sender address
   * @param _to The receiver address
   * @param _amount The amount being transferred
   */
  modifier antiMEV(
    address _from,
    address _to,
    uint256 _amount
  ) {
    if (isAntiMEV) {
      antiMEVStrategy.onTransfer(_from, _to, _amount, taxFlag == TAXING);
    }
    _;
  }

  /**
   * @notice Burns BEN coin
   * @param _amount The amount to burn
   */
  function burn(uint256 _amount) external {
    _burn(_msgSender(), _amount);
  }

  /**
   * @notice Burns BEN coin from a specific address which has given the sender an allowance
   * @param _account The account to burn from
   * @param _amount The amount to burn
   */
  function burnFrom(address _account, uint256 _amount) external {
    _spendAllowance(_account, _msgSender(), _amount);
    _burn(_account, _amount);
  }

  function _mint(address _account, uint256 _amount) internal override(ERC20, ERC20Votes) {
    ERC20Votes._mint(_account, _amount);
  }

  function _burn(address _account, uint256 _amount) internal override(ERC20, ERC20Votes) {
    ERC20Votes._burn(_account, _amount);
  }

  function _beforeTokenTransfer(
    address _from,
    address _to,
    uint256 _amount
  ) internal override(ERC20) antiMEV(_from, _to, _amount) {
    if (isBlacklisting && transferBlacklist[_from]) {
      revert TransferBlacklisted(_from);
    }

    ERC20._beforeTokenTransfer(_from, _to, _amount);

    if (isTaxingEnabled && taxFlag == NOT_TAXING && taxableAddress[_to] && !taxWhitelist[_from]) {
      taxFlag = TAXING; // Set this so no further taxing is done by other transfers
      IBuyTaxReceiver(buyTaxReceiver).swapCallback();
      taxFlag = NOT_TAXING;
    }
  }

  function _afterTokenTransfer(address _from, address _to, uint256 _amount) internal override(ERC20, ERC20Votes) {
    ERC20Votes._afterTokenTransfer(_from, _to, _amount);

    // Take a fee if it is a taxable contract
    if (isTaxingEnabled && taxFlag == NOT_TAXING) {
      // If it's a buy then we take from who-ever it is sent to and send to the contract for selling back to ETH
      if (taxableAddress[_from] && !taxWhitelist[_to]) {
        uint256 fee = _calcTax(buyTax, _amount);
        // Transfers from the receiver to the buy tax receiver for later selling
        taxFlag = TAXING;
        _transfer(_to, buyTaxReceiver, fee);
        taxFlag = NOT_TAXING;
      } else if (taxableAddress[_to] && !taxWhitelist[_from]) {
        uint256 fee = _calcTax(sellTax, _amount);
        // Transfers from taxable contracts (like LPs) to the admin directly
        taxFlag = TAXING;
        _transfer(_to, owner(), fee);
        taxFlag = NOT_TAXING;
      }
    }
  }

  /**
   * @notice Calculate the tax fee
   * @param _tax The tax rate in basis points (10000 basis points = 100%)
   * @param _amount The amount to apply the tax to
   * @return fees The calculated tax fees
   * @dev Internal function used to calculate tax fees
   */
  function _calcTax(uint256 _tax, uint256 _amount) private pure returns (uint256 fees) {
    fees = (_amount * _tax) / FEE_DENOMINATOR;
  }

  function _setTax(uint256 _buyTax, uint256 _sellTax, bool _isTaxingEnabled) internal {
    // Cannot set tax higher than MAX_TAX (10%)
    if ((_buyTax * MAX_TAX > FEE_DENOMINATOR) || (_sellTax * MAX_TAX > FEE_DENOMINATOR)) {
      revert MaxTaxExceeded();
    }

    buyTax = uint16(_buyTax);
    sellTax = uint16(_sellTax);
    isTaxingEnabled = _isTaxingEnabled;

    emit SetTax(_buyTax, _sellTax, _isTaxingEnabled);
  }

  function _setIsAntiMEV(bool _isAntiMEV) private {
    isAntiMEV = _isAntiMEV;
    emit SetIsAntiMEV(_isAntiMEV);
  }

  function _setIsTransferBlacklisting(bool _isBlacklisting) private {
    isBlacklisting = _isBlacklisting;
    emit SetIsTransferBlacklisting(_isBlacklisting);
  }

  function _setBuyTaxReceiver(address _buyTaxReceiver) private {
    if (
      !Address.isContract(_buyTaxReceiver) ||
      !IERC165(_buyTaxReceiver).supportsInterface(type(IBuyTaxReceiver).interfaceId)
    ) {
      revert InvalidBuyTaxReceiver();
    }
    buyTaxReceiver = _buyTaxReceiver;
    emit SetBuyTaxReceiver(_buyTaxReceiver);
  }

  /**
   * @notice Set the tax parameters
   * @param _buyTax The buy tax rate in basis points (10000 basis points = 100%)
   * @param _sellTax The sell tax rate in basis points (10000 basis points = 100%)
   * @param _isTaxingEnabled Whether or not taxing is enabled
   * @dev Only callable by the owner
   */
  function setTax(uint256 _buyTax, uint256 _sellTax, bool _isTaxingEnabled) external onlyOwner {
    _setTax(_buyTax, _sellTax, _isTaxingEnabled);
  }

  /**
   * @notice Set whether or not a contract is taxable
   * @param _taxableContract The contract to set taxable state for
   * @param _isTaxable Whether or not the contract is taxable
   * @dev Only callable by the owner
   */
  function setTaxableContract(address _taxableContract, bool _isTaxable) external onlyOwner {
    taxableAddress[_taxableContract] = _isTaxable;
    emit SetTaxableContract(_taxableContract, _isTaxable);
  }

  /**
   * @notice Set whether or not an address is whitelisted for tax
   * @param _whitelist The address to set whitelist state for
   * @param _isWhitelisted Whether or not the address is whitelisted
   * @dev Only callable by the owner
   */
  function setTaxWhitelist(address _whitelist, bool _isWhitelisted) external onlyOwner {
    taxWhitelist[_whitelist] = _isWhitelisted;
    emit SetTaxWhitelist(_whitelist, _isWhitelisted);
  }

  /**
   * @notice Set whether an anti-MEV strategy is used
   * @param _isAntiMEV Whether or not anti-MEV is enabled
   * @dev Only callable by the owner
   */
  function setIsAntiMEV(bool _isAntiMEV) external onlyOwner {
    _setIsAntiMEV(_isAntiMEV);
  }

  /**
   * @notice Set the anti-MEV strategy
   * @param _antiMEVStrategy The anti-MEV strategy to use
   * @dev Only callable by the owner
   */
  function setAntiMevStrategy(IAntiMevStrategy _antiMEVStrategy) external onlyOwner {
    antiMEVStrategy = _antiMEVStrategy;
  }

  /**
   * @notice Set whether or not transfer blacklisting is enabled
   * @param _isBlacklisting Whether or not transfer blacklisting is enabled
   * @dev Only callable by the owner
   */
  function setIsTransferBlacklisting(bool _isBlacklisting) external onlyOwner {
    _setIsTransferBlacklisting(_isBlacklisting);
  }

  /**
   * @notice Recover tokens sent to this contract by accident
   * @param _token The token to recover
   * @param _amount The amount to recover
   * @dev Only callable by the owner
   */
  function recoverToken(IERC20 _token, uint _amount) external onlyOwner {
    _token.safeTransfer(owner(), _amount);
  }

  /**
   * @notice Set the buy tax receiver address
   * @param _buyTaxReceiver The address to send the buy tax to
   * @dev Only callable by the owner
   */
  function setBuyTaxReceiver(address _buyTaxReceiver) external onlyOwner {
    _setBuyTaxReceiver(_buyTaxReceiver);
  }

  /**
   * @notice Set whether or not an address is blacklisted from transferring
   * @param _blacklist The address to set blacklist state for
   * @param _isBlacklisted Whether or not the address is blacklisted
   * @dev Only callable by the owner
   */
  function setTransferBlacklist(address _blacklist, bool _isBlacklisted) external onlyOwner {
    transferBlacklist[_blacklist] = _isBlacklisted;
    emit SetTransferBlacklist(_blacklist, _isBlacklisted);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IAntiMevStrategy {
  function onTransfer(address from, address to, uint256 amount, bool isTaxingInProgress) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

interface IBuyTaxReceiver {
  function swapCallback() external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

import "./ILayerZeroUserApplicationConfig.sol";

interface ILayerZeroEndpoint is ILayerZeroUserApplicationConfig {
    // @notice send a LayerZero message to the specified address at a LayerZero endpoint.
    // @param _dstChainId - the destination chain identifier
    // @param _destination - the address on destination chain (in bytes). address length/format may vary by chains
    // @param _payload - a custom bytes payload to send to the destination contract
    // @param _refundAddress - if the source transaction is cheaper than the amount of value passed, refund the additional amount to this address
    // @param _zroPaymentAddress - the address of the ZRO token holder who would pay for the transaction
    // @param _adapterParams - parameters for custom functionality. e.g. receive airdropped native gas from the relayer on destination
    function send(uint16 _dstChainId, bytes calldata _destination, bytes calldata _payload, address payable _refundAddress, address _zroPaymentAddress, bytes calldata _adapterParams) external payable;

    // @notice used by the messaging library to publish verified payload
    // @param _srcChainId - the source chain identifier
    // @param _srcAddress - the source contract (as bytes) at the source chain
    // @param _dstAddress - the address on destination chain
    // @param _nonce - the unbound message ordering nonce
    // @param _gasLimit - the gas limit for external contract execution
    // @param _payload - verified payload to send to the destination contract
    function receivePayload(uint16 _srcChainId, bytes calldata _srcAddress, address _dstAddress, uint64 _nonce, uint _gasLimit, bytes calldata _payload) external;

    // @notice get the inboundNonce of a lzApp from a source chain which could be EVM or non-EVM chain
    // @param _srcChainId - the source chain identifier
    // @param _srcAddress - the source chain contract address
    function getInboundNonce(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (uint64);

    // @notice get the outboundNonce from this source chain which, consequently, is always an EVM
    // @param _srcAddress - the source chain contract address
    function getOutboundNonce(uint16 _dstChainId, address _srcAddress) external view returns (uint64);

    // @notice gets a quote in source native gas, for the amount that send() requires to pay for message delivery
    // @param _dstChainId - the destination chain identifier
    // @param _userApplication - the user app address on this EVM chain
    // @param _payload - the custom message to send over LayerZero
    // @param _payInZRO - if false, user app pays the protocol fee in native token
    // @param _adapterParam - parameters for the adapter service, e.g. send some dust native token to dstChain
    function estimateFees(uint16 _dstChainId, address _userApplication, bytes calldata _payload, bool _payInZRO, bytes calldata _adapterParam) external view returns (uint nativeFee, uint zroFee);

    // @notice get this Endpoint's immutable source identifier
    function getChainId() external view returns (uint16);

    // @notice the interface to retry failed message on this Endpoint destination
    // @param _srcChainId - the source chain identifier
    // @param _srcAddress - the source chain contract address
    // @param _payload - the payload to be retried
    function retryPayload(uint16 _srcChainId, bytes calldata _srcAddress, bytes calldata _payload) external;

    // @notice query if any STORED payload (message blocking) at the endpoint.
    // @param _srcChainId - the source chain identifier
    // @param _srcAddress - the source chain contract address
    function hasStoredPayload(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (bool);

    // @notice query if the _libraryAddress is valid for sending msgs.
    // @param _userApplication - the user app address on this EVM chain
    function getSendLibraryAddress(address _userApplication) external view returns (address);

    // @notice query if the _libraryAddress is valid for receiving msgs.
    // @param _userApplication - the user app address on this EVM chain
    function getReceiveLibraryAddress(address _userApplication) external view returns (address);

    // @notice query if the non-reentrancy guard for send() is on
    // @return true if the guard is on. false otherwise
    function isSendingPayload() external view returns (bool);

    // @notice query if the non-reentrancy guard for receive() is on
    // @return true if the guard is on. false otherwise
    function isReceivingPayload() external view returns (bool);

    // @notice get the configuration of the LayerZero messaging library of the specified version
    // @param _version - messaging library version
    // @param _chainId - the chainId for the pending config change
    // @param _userApplication - the contract address of the user application
    // @param _configType - type of configuration. every messaging library has its own convention.
    function getConfig(uint16 _version, uint16 _chainId, address _userApplication, uint _configType) external view returns (bytes memory);

    // @notice get the send() LayerZero messaging library version
    // @param _userApplication - the contract address of the user application
    function getSendVersion(address _userApplication) external view returns (uint16);

    // @notice get the lzReceive() LayerZero messaging library version
    // @param _userApplication - the contract address of the user application
    function getReceiveVersion(address _userApplication) external view returns (uint16);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface ILayerZeroReceiver {
    // @notice LayerZero endpoint will invoke this function to deliver the message on the destination
    // @param _srcChainId - the source endpoint identifier
    // @param _srcAddress - the source sending contract address from the source chain
    // @param _nonce - the ordered message nonce
    // @param _payload - the signed payload is the UA bytes has encoded to be sent
    function lzReceive(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface ILayerZeroUserApplicationConfig {
    // @notice set the configuration of the LayerZero messaging library of the specified version
    // @param _version - messaging library version
    // @param _chainId - the chainId for the pending config change
    // @param _configType - type of configuration. every messaging library has its own convention.
    // @param _config - configuration in the bytes. can encode arbitrary content.
    function setConfig(uint16 _version, uint16 _chainId, uint _configType, bytes calldata _config) external;

    // @notice set the send() LayerZero messaging library version to _version
    // @param _version - new messaging library version
    function setSendVersion(uint16 _version) external;

    // @notice set the lzReceive() LayerZero messaging library version to _version
    // @param _version - new messaging library version
    function setReceiveVersion(uint16 _version) external;

    // @notice Only when the UA needs to resume the message flow in blocking mode and clear the stored payload
    // @param _srcChainId - the chainId of the source chain
    // @param _srcAddress - the contract address of the source contract at the source chain
    function forceResumeReceive(uint16 _srcChainId, bytes calldata _srcAddress) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../../oz/access/Ownable.sol";
import "../interfaces/ILayerZeroReceiver.sol";
import "../interfaces/ILayerZeroUserApplicationConfig.sol";
import "../interfaces/ILayerZeroEndpoint.sol";
import "../util/BytesLib.sol";

/*
 * a generic LzReceiver implementation
 */
abstract contract LzApp is Ownable, ILayerZeroReceiver, ILayerZeroUserApplicationConfig {
    using BytesLib for bytes;

    error LZAPPInvalidEndpointCaller();
    error LZAPPInvalidSourceSendingContract();
    error LZAPPInvalidDestinationChain();
    error LZAPPInvalidMinGasLimit();
    error LZAPPInvalidGasLimit();
    error LZAPPInvalidAdapterParams();
    error LZAPPInvalidPayloadSize();
    error LZAPPNoTrustedPathRecord();
    error LZAPPInvalidMinGas();

    // ua can not send payload larger than this by default, but it can be changed by the ua owner
    uint constant public DEFAULT_PAYLOAD_SIZE_LIMIT = 10000;

    ILayerZeroEndpoint public lzEndpoint;
    mapping(uint16 => bytes) public trustedRemoteLookup;
    mapping(uint16 => mapping(uint16 => uint)) public minDstGasLookup;
    mapping(uint16 => uint) public payloadSizeLimitLookup;
    address public precrime;

    event SetPrecrime(address precrime);
    event SetTrustedRemote(uint16 _remoteChainId, bytes _path);
    event SetTrustedRemoteAddress(uint16 _remoteChainId, bytes _remoteAddress);
    event SetMinDstGas(uint16 _dstChainId, uint16 _type, uint _minDstGas);

    function __LzApp_init(address _endpoint) internal {
        lzEndpoint = ILayerZeroEndpoint(_endpoint);
    }

    function lzReceive(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) public virtual override {
        // lzReceive must be called by the endpoint for security
        if (_msgSender() != address(lzEndpoint)) {
            revert LZAPPInvalidEndpointCaller();
        }

        bytes memory trustedRemote = trustedRemoteLookup[_srcChainId];
        // if will still block the message pathway from (srcChainId, srcAddress). should not receive message from untrusted remote.
        if ((_srcAddress.length != trustedRemote.length) || trustedRemote.length == 0 || keccak256(_srcAddress) != keccak256(trustedRemote)) {
            revert LZAPPInvalidSourceSendingContract();
        }

        _blockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
    }

    // abstract function - the default behaviour of LayerZero is blocking. See: NonblockingLzApp if you dont need to enforce ordered messaging
    function _blockingLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual;

    function _lzSend(uint16 _dstChainId, bytes memory _payload, address payable _refundAddress, address _zroPaymentAddress, bytes memory _adapterParams, uint _nativeFee) internal virtual {
        bytes memory trustedRemote = trustedRemoteLookup[_dstChainId];
        if (trustedRemote.length == 0) {
            revert LZAPPInvalidDestinationChain();
        }
        _checkPayloadSize(_dstChainId, _payload.length);
        lzEndpoint.send{value: _nativeFee}(_dstChainId, trustedRemote, _payload, _refundAddress, _zroPaymentAddress, _adapterParams);
    }

    function _checkGasLimit(uint16 _dstChainId, uint16 _type, bytes memory _adapterParams, uint _extraGas) internal view virtual {
        uint providedGasLimit = _getGasLimit(_adapterParams);
        uint minGasLimit = minDstGasLookup[_dstChainId][_type] + _extraGas;
        if (minGasLimit == 0) {
            revert LZAPPInvalidMinGasLimit();
        }
        if (providedGasLimit < minGasLimit) {
            revert LZAPPInvalidGasLimit();
        }
    }

    function _getGasLimit(bytes memory _adapterParams) internal pure virtual returns (uint gasLimit) {
        if (_adapterParams.length < 34) {
            revert LZAPPInvalidAdapterParams();
        }
        assembly {
            gasLimit := mload(add(_adapterParams, 34))
        }
    }

    function _checkPayloadSize(uint16 _dstChainId, uint _payloadSize) internal view virtual {
        uint payloadSizeLimit = payloadSizeLimitLookup[_dstChainId];
        if (payloadSizeLimit == 0) { // use default if not set
            payloadSizeLimit = DEFAULT_PAYLOAD_SIZE_LIMIT;
        }
        if (_payloadSize > payloadSizeLimit) {
            revert LZAPPInvalidPayloadSize();
        }
    }

    //---------------------------UserApplication config----------------------------------------
    function getConfig(uint16 _version, uint16 _chainId, address, uint _configType) external view returns (bytes memory) {
        return lzEndpoint.getConfig(_version, _chainId, address(this), _configType);
    }

    // generic config for LayerZero user Application
    function setConfig(uint16 _version, uint16 _chainId, uint _configType, bytes calldata _config) external override onlyOwner {
        lzEndpoint.setConfig(_version, _chainId, _configType, _config);
    }

    function setSendVersion(uint16 _version) external override onlyOwner {
        lzEndpoint.setSendVersion(_version);
    }

    function setReceiveVersion(uint16 _version) external override onlyOwner {
        lzEndpoint.setReceiveVersion(_version);
    }

    function forceResumeReceive(uint16 _srcChainId, bytes calldata _srcAddress) external override onlyOwner {
        lzEndpoint.forceResumeReceive(_srcChainId, _srcAddress);
    }

    // _path = abi.encodePacked(remoteAddress, localAddress)
    // this function set the trusted path for the cross-chain communication
    function setTrustedRemote(uint16 _remoteChainId, bytes calldata _path) external onlyOwner {
        trustedRemoteLookup[_remoteChainId] = _path;
        emit SetTrustedRemote(_remoteChainId, _path);
    }

    function setTrustedRemoteAddress(uint16 _remoteChainId, bytes calldata _remoteAddress) external onlyOwner {
        trustedRemoteLookup[_remoteChainId] = abi.encodePacked(_remoteAddress, address(this));
        emit SetTrustedRemoteAddress(_remoteChainId, _remoteAddress);
    }

    function getTrustedRemoteAddress(uint16 _remoteChainId) external view returns (bytes memory) {
        bytes memory path = trustedRemoteLookup[_remoteChainId];
        if (path.length == 0) {
            revert LZAPPNoTrustedPathRecord();
        }
        return path.slice(0, path.length - 20); // the last 20 bytes should be address(this)
    }

    function setPrecrime(address _precrime) external onlyOwner {
        precrime = _precrime;
        emit SetPrecrime(_precrime);
    }

    function setMinDstGas(uint16 _dstChainId, uint16 _packetType, uint _minGas) external onlyOwner {
        if (_minGas == 0) {
            revert LZAPPInvalidMinGas();
        }
        minDstGasLookup[_dstChainId][_packetType] = _minGas;
        emit SetMinDstGas(_dstChainId, _packetType, _minGas);
    }

    // if the size is 0, it means default size limit
    function setPayloadSizeLimit(uint16 _dstChainId, uint _size) external onlyOwner {
        payloadSizeLimitLookup[_dstChainId] = _size;
    }

    //--------------------------- VIEW FUNCTION ----------------------------------------
    function isTrustedRemote(uint16 _srcChainId, bytes calldata _srcAddress) external view returns (bool) {
        bytes memory trustedSource = trustedRemoteLookup[_srcChainId];
        return keccak256(trustedSource) == keccak256(_srcAddress);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./LzApp.sol";
import "../util/ExcessivelySafeCall.sol";

/*
 * the default LayerZero messaging behaviour is blocking, i.e. any failed message will block the channel
 * this abstract class try-catch all fail messages and store locally for future retry. hence, non-blocking
 * NOTE: if the srcAddress is not configured properly, it will still block the message pathway from (srcChainId, srcAddress)
 */
abstract contract NonblockingLzApp is LzApp {
    using ExcessivelySafeCall for address;

    error LZAPPInvalidPayload();

    function __NonblockingLzApp_init(address _endpoint) internal {
        __LzApp_init(_endpoint);
    }

    mapping(uint16 => mapping(bytes => mapping(uint64 => bytes32))) public failedMessages;

    event MessageFailed(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes _payload, bytes _reason);
    event RetryMessageSuccess(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes32 _payloadHash);

    // overriding the virtual function in LzReceiver
    function _blockingLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual override {
        (bool success, bytes memory reason) = address(this).excessivelySafeCall(gasleft(), 150, abi.encodeWithSelector(this.nonblockingLzReceive.selector, _srcChainId, _srcAddress, _nonce, _payload));
        // try-catch all errors/exceptions
        if (!success) {
            _storeFailedMessage(_srcChainId, _srcAddress, _nonce, _payload, reason);
        }
    }

    function _storeFailedMessage(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload, bytes memory _reason) internal virtual {
        failedMessages[_srcChainId][_srcAddress][_nonce] = keccak256(_payload);
        emit MessageFailed(_srcChainId, _srcAddress, _nonce, _payload, _reason);
    }

    function nonblockingLzReceive(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) public virtual {
        // only internal transaction
        if (_msgSender() != address(this)) {
            revert LZAPPInvalidEndpointCaller();
        }
        _nonblockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
    }

    //@notice override this function
    function _nonblockingLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual;

    function retryMessage(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) public payable virtual {
        // assert there is message to retry
        bytes32 payloadHash = failedMessages[_srcChainId][_srcAddress][_nonce];
        if (payloadHash == bytes32(0)) {
            revert LZAPPInvalidSourceSendingContract();
        }
        if (keccak256(_payload) != payloadHash) {
            revert LZAPPInvalidPayload();
        }
        // clear the stored message
        failedMessages[_srcChainId][_srcAddress][_nonce] = bytes32(0);
        // execute the message. revert if it fails again
        _nonblockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);
        emit RetryMessageSuccess(_srcChainId, _srcAddress, _nonce, payloadHash);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./OFTCoreV2.sol";
import "./IOFTV2.sol";
import "../../../../oz/utils/introspection/ERC165.sol";

abstract contract BaseOFTV2 is OFTCoreV2, ERC165, IOFTV2 {

    constructor(uint8 _sharedDecimals) OFTCoreV2(_sharedDecimals) {
    }

    function __BaseOFTV2_init(address _lzEndpoint) internal {
        __OFTCoreV2_init(_lzEndpoint);
    }

    /************************************************************************
    * public functions
    ************************************************************************/
    function sendFrom(address _from, uint16 _dstChainId, bytes32 _toAddress, uint _amount, LzCallParams calldata _callParams) public payable virtual override {
        _send(_from, _dstChainId, _toAddress, _amount, _callParams.refundAddress, _callParams.zroPaymentAddress, _callParams.adapterParams);
    }

    function sendAndCall(address _from, uint16 _dstChainId, bytes32 _toAddress, uint _amount, bytes calldata _payload, uint64 _dstGasForCall, LzCallParams calldata _callParams) public payable virtual override {
        _sendAndCall(_from, _dstChainId, _toAddress, _amount, _payload, _dstGasForCall, _callParams.refundAddress, _callParams.zroPaymentAddress, _callParams.adapterParams);
    }

    /************************************************************************
    * public view functions
    ************************************************************************/
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IOFTV2).interfaceId || super.supportsInterface(interfaceId);
    }

    function estimateSendFee(uint16 _dstChainId, bytes32 _toAddress, uint _amount, bool _useZro, bytes calldata _adapterParams) public view virtual override returns (uint nativeFee, uint zroFee) {
        return _estimateSendFee(_dstChainId, _toAddress, _amount, _useZro, _adapterParams);
    }

    function estimateSendAndCallFee(uint16 _dstChainId, bytes32 _toAddress, uint _amount, bytes calldata _payload, uint64 _dstGasForCall, bool _useZro, bytes calldata _adapterParams) public view virtual override returns (uint nativeFee, uint zroFee) {
        return _estimateSendAndCallFee(_dstChainId, _toAddress, _amount, _payload, _dstGasForCall, _useZro, _adapterParams);
    }

    function circulatingSupply() public view virtual override returns (uint);

    function token() public view virtual override returns (address);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

import "../../../../oz/utils/introspection/IERC165.sol";

/**
 * @dev Interface of the IOFT core standard
 */
interface ICommonOFT is IERC165 {

    struct LzCallParams {
        address payable refundAddress;
        address zroPaymentAddress;
        bytes adapterParams;
    }

    /**
     * @dev estimate send token `_tokenId` to (`_dstChainId`, `_toAddress`)
     * _dstChainId - L0 defined chain id to send tokens too
     * _toAddress - dynamic bytes array which contains the address to whom you are sending tokens to on the dstChain
     * _amount - amount of the tokens to transfer
     * _useZro - indicates to use zro to pay L0 fees
     * _adapterParam - flexible bytes array to indicate messaging adapter services in L0
     */
    function estimateSendFee(uint16 _dstChainId, bytes32 _toAddress, uint _amount, bool _useZro, bytes calldata _adapterParams) external view returns (uint nativeFee, uint zroFee);

    function estimateSendAndCallFee(uint16 _dstChainId, bytes32 _toAddress, uint _amount, bytes calldata _payload, uint64 _dstGasForCall, bool _useZro, bytes calldata _adapterParams) external view returns (uint nativeFee, uint zroFee);

    /**
     * @dev returns the circulating amount of tokens on current chain
     */
    function circulatingSupply() external view returns (uint);

    /**
     * @dev returns the address of the ERC20 token
     */
    function token() external view returns (address);
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity >=0.5.0;

interface IOFTReceiverV2 {
    /**
     * @dev Called by the OFT contract when tokens are received from source chain.
     * @param _srcChainId The chain id of the source chain.
     * @param _srcAddress The address of the OFT token contract on the source chain.
     * @param _nonce The nonce of the transaction on the source chain.
     * @param _from The address of the account who calls the sendAndCall() on the source chain.
     * @param _amount The amount of tokens to transfer.
     * @param _payload Additional data with no specified format.
     */
    function onOFTReceived(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes32 _from, uint _amount, bytes calldata _payload) external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

import "./ICommonOFT.sol";

/**
 * @dev Interface of the IOFT core standard
 */
interface IOFTV2 is ICommonOFT {

    /**
     * @dev send `_amount` amount of token to (`_dstChainId`, `_toAddress`) from `_from`
     * `_from` the owner of token
     * `_dstChainId` the destination chain identifier
     * `_toAddress` can be any size depending on the `dstChainId`.
     * `_amount` the quantity of tokens in wei
     * `_refundAddress` the address LayerZero refunds if too much message fee is sent
     * `_zroPaymentAddress` set to address(0x0) if not paying in ZRO (LayerZero Token)
     * `_adapterParams` is a flexible bytes array to indicate messaging adapter services
     */
    function sendFrom(address _from, uint16 _dstChainId, bytes32 _toAddress, uint _amount, LzCallParams calldata _callParams) external payable;

    function sendAndCall(address _from, uint16 _dstChainId, bytes32 _toAddress, uint _amount, bytes calldata _payload, uint64 _dstGasForCall, LzCallParams calldata _callParams) external payable;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../../../lzApp/NonblockingLzApp.sol";
import "../../../util/ExcessivelySafeCall.sol";
import "./ICommonOFT.sol";
import "./IOFTReceiverV2.sol";

abstract contract OFTCoreV2 is NonblockingLzApp {
    using BytesLib for bytes;
    using ExcessivelySafeCall for address;

    error OFTCoreCallerMustBeOFTCore();
    error OFTCoreUnknownPacketType();
    error OFTCoreAmountZero();
    error OFTCoreAdapterParamsNotAllowed();
    error OFTCoreAmountSDOverflow();
    error OFTCoreInvalidPayload();

    uint public constant NO_EXTRA_GAS = 0;

    // packet type
    uint8 public constant PT_SEND = 0;
    uint8 public constant PT_SEND_AND_CALL = 1;

    uint8 public immutable sharedDecimals;

    bool public useCustomAdapterParams;
    mapping(uint16 => mapping(bytes => mapping(uint64 => bool))) public creditedPackets;

    /**
     * @dev Emitted when `_amount` tokens are moved from the `_sender` to (`_dstChainId`, `_toAddress`)
     * `_nonce` is the outbound nonce
     */
    event SendToChain(uint16 indexed _dstChainId, address indexed _from, bytes32 indexed _toAddress, uint _amount);

    /**
     * @dev Emitted when `_amount` tokens are received from `_srcChainId` into the `_toAddress` on the local chain.
     * `_nonce` is the inbound nonce.
     */
    event ReceiveFromChain(uint16 indexed _srcChainId, address indexed _to, uint _amount);

    event SetUseCustomAdapterParams(bool _useCustomAdapterParams);

    event CallOFTReceivedSuccess(uint16 indexed _srcChainId, bytes _srcAddress, uint64 _nonce, bytes32 _hash);

    event NonContractAddress(address _address);

    // _sharedDecimals should be the minimum decimals on all chains
    constructor(uint8 _sharedDecimals) {
        sharedDecimals = _sharedDecimals;
    }

    function __OFTCoreV2_init(address _lzEndpoint) internal {
        __NonblockingLzApp_init(_lzEndpoint);
    }

    /************************************************************************
    * public functions
    ************************************************************************/
    function callOnOFTReceived(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes32 _from, address _to, uint _amount, bytes calldata _payload, uint _gasForCall) public virtual {
        if (_msgSender() != address(this)) {
            revert OFTCoreCallerMustBeOFTCore();  
        }

        // send
        _amount = _transferFrom(address(this), _to, _amount);
        emit ReceiveFromChain(_srcChainId, _to, _amount);

        // call
        IOFTReceiverV2(_to).onOFTReceived{gas: _gasForCall}(_srcChainId, _srcAddress, _nonce, _from, _amount, _payload);
    }

    function setUseCustomAdapterParams(bool _useCustomAdapterParams) public virtual onlyOwner {
        useCustomAdapterParams = _useCustomAdapterParams;
        emit SetUseCustomAdapterParams(_useCustomAdapterParams);
    }

    /************************************************************************
    * internal functions
    ************************************************************************/
    function _estimateSendFee(uint16 _dstChainId, bytes32 _toAddress, uint _amount, bool _useZro, bytes memory _adapterParams) internal view virtual returns (uint nativeFee, uint zroFee) {
        // mock the payload for sendFrom()
        bytes memory payload = _encodeSendPayload(_toAddress, _ld2sd(_amount));
        return lzEndpoint.estimateFees(_dstChainId, address(this), payload, _useZro, _adapterParams);
    }

    function _estimateSendAndCallFee(uint16 _dstChainId, bytes32 _toAddress, uint _amount, bytes memory _payload, uint64 _dstGasForCall, bool _useZro, bytes memory _adapterParams) internal view virtual returns (uint nativeFee, uint zroFee) {
        // mock the payload for sendAndCall()
        bytes memory payload = _encodeSendAndCallPayload(msg.sender, _toAddress, _ld2sd(_amount), _payload, _dstGasForCall);
        return lzEndpoint.estimateFees(_dstChainId, address(this), payload, _useZro, _adapterParams);
    }

    function _nonblockingLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual override {
        uint8 packetType = _payload.toUint8(0);

        if (packetType == PT_SEND) {
            _sendAck(_srcChainId, _srcAddress, _nonce, _payload);
        } else if (packetType == PT_SEND_AND_CALL) {
            _sendAndCallAck(_srcChainId, _srcAddress, _nonce, _payload);
        } else {
            revert OFTCoreUnknownPacketType();
        }
    }

    function _send(address _from, uint16 _dstChainId, bytes32 _toAddress, uint _amount, address payable _refundAddress, address _zroPaymentAddress, bytes memory _adapterParams) internal virtual returns (uint amount) {
        _checkAdapterParams(_dstChainId, PT_SEND, _adapterParams, NO_EXTRA_GAS);

        (amount,) = _removeDust(_amount);
        amount = _debitFrom(_from, _dstChainId, _toAddress, amount); // amount returned should not have dust
        if (amount == 0) {
            revert OFTCoreAmountZero();
        }

        bytes memory lzPayload = _encodeSendPayload(_toAddress, _ld2sd(amount));
        _lzSend(_dstChainId, lzPayload, _refundAddress, _zroPaymentAddress, _adapterParams, msg.value);

        emit SendToChain(_dstChainId, _from, _toAddress, amount);
    }

    function _sendAck(uint16 _srcChainId, bytes memory, uint64, bytes memory _payload) internal virtual {
        (address to, uint64 amountSD) = _decodeSendPayload(_payload);
        if (to == address(0)) {
            to = address(0xdead);
        }

        uint amount = _sd2ld(amountSD);
        amount = _creditTo(_srcChainId, to, amount);

        emit ReceiveFromChain(_srcChainId, to, amount);
    }

    function _sendAndCall(address _from, uint16 _dstChainId, bytes32 _toAddress, uint _amount, bytes memory _payload, uint64 _dstGasForCall, address payable _refundAddress, address _zroPaymentAddress, bytes memory _adapterParams) internal virtual returns (uint amount) {
        _checkAdapterParams(_dstChainId, PT_SEND_AND_CALL, _adapterParams, _dstGasForCall);

        (amount,) = _removeDust(_amount);
        amount = _debitFrom(_from, _dstChainId, _toAddress, amount);
        if (amount == 0) {
            revert OFTCoreAmountZero();
        }

        // encode the msg.sender into the payload instead of _from
        bytes memory lzPayload = _encodeSendAndCallPayload(msg.sender, _toAddress, _ld2sd(amount), _payload, _dstGasForCall);
        _lzSend(_dstChainId, lzPayload, _refundAddress, _zroPaymentAddress, _adapterParams, msg.value);

        emit SendToChain(_dstChainId, _from, _toAddress, amount);
    }

    function _sendAndCallAck(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual {
        (bytes32 from, address to, uint64 amountSD, bytes memory payloadForCall, uint64 gasForCall) = _decodeSendAndCallPayload(_payload);

        bool credited = creditedPackets[_srcChainId][_srcAddress][_nonce];
        uint amount = _sd2ld(amountSD);

        // credit to this contract first, and then transfer to receiver only if callOnOFTReceived() succeeds
        if (!credited) {
            amount = _creditTo(_srcChainId, address(this), amount);
            creditedPackets[_srcChainId][_srcAddress][_nonce] = true;
        }

        if (!_isContract(to)) {
            emit NonContractAddress(to);
            return;
        }

        // workaround for stack too deep
        uint16 srcChainId = _srcChainId;
        bytes memory srcAddress = _srcAddress;
        uint64 nonce = _nonce;
        bytes memory payload = _payload;
        bytes32 from_ = from;
        address to_ = to;
        uint amount_ = amount;
        bytes memory payloadForCall_ = payloadForCall;

        // no gas limit for the call if retry
        uint gas = credited ? gasleft() : gasForCall;
        (bool success, bytes memory reason) = address(this).excessivelySafeCall(gasleft(), 150, abi.encodeWithSelector(this.callOnOFTReceived.selector, srcChainId, srcAddress, nonce, from_, to_, amount_, payloadForCall_, gas));

        if (success) {
            bytes32 hash = keccak256(payload);
            emit CallOFTReceivedSuccess(srcChainId, srcAddress, nonce, hash);
        } else {
            // store the failed message into the nonblockingLzApp
            _storeFailedMessage(srcChainId, srcAddress, nonce, payload, reason);
        }
    }

    function _isContract(address _account) internal view returns (bool) {
        return _account.code.length > 0;
    }

    function _checkAdapterParams(uint16 _dstChainId, uint16 _pkType, bytes memory _adapterParams, uint _extraGas) internal virtual {
        if (useCustomAdapterParams) {
            _checkGasLimit(_dstChainId, _pkType, _adapterParams, _extraGas);
        } else if (_adapterParams.length != 0) {
            revert OFTCoreAdapterParamsNotAllowed();
        }
    }

    function _ld2sd(uint _amount) internal virtual view returns (uint64) {
        uint amountSD = _amount / _ld2sdRate();
        if (amountSD > type(uint64).max) {
            revert OFTCoreAmountSDOverflow();
        }
        return uint64(amountSD);
    }

    function _sd2ld(uint64 _amountSD) internal virtual view returns (uint) {
        return _amountSD * _ld2sdRate();
    }

    function _removeDust(uint _amount) internal virtual view returns (uint amountAfter, uint dust) {
        dust = _amount % _ld2sdRate();
        amountAfter = _amount - dust;
    }

    function _encodeSendPayload(bytes32 _toAddress, uint64 _amountSD) internal virtual view returns (bytes memory) {
        return abi.encodePacked(PT_SEND, _toAddress, _amountSD);
    }

    function _decodeSendPayload(bytes memory _payload) internal virtual view returns (address to, uint64 amountSD) {
        if (_payload.toUint8(0) != PT_SEND || _payload.length != 41) {
            revert OFTCoreInvalidPayload();
        }

        to = _payload.toAddress(13); // drop the first 12 bytes of bytes32
        amountSD = _payload.toUint64(33);
    }

    function _encodeSendAndCallPayload(address _from, bytes32 _toAddress, uint64 _amountSD, bytes memory _payload, uint64 _dstGasForCall) internal virtual view returns (bytes memory) {
        return abi.encodePacked(
            PT_SEND_AND_CALL,
            _toAddress,
            _amountSD,
            _addressToBytes32(_from),
            _dstGasForCall,
            _payload
        );
    }

    function _decodeSendAndCallPayload(bytes memory _payload) internal virtual view returns (bytes32 from, address to, uint64 amountSD, bytes memory payload, uint64 dstGasForCall) {
        if (_payload.toUint8(0) != PT_SEND_AND_CALL) {
            revert OFTCoreInvalidPayload();
        }

        to = _payload.toAddress(13); // drop the first 12 bytes of bytes32
        amountSD = _payload.toUint64(33);
        from = _payload.toBytes32(41);
        dstGasForCall = _payload.toUint64(73);
        payload = _payload.slice(81, _payload.length - 81);
    }

    function _addressToBytes32(address _address) internal pure virtual returns (bytes32) {
        return bytes32(uint(uint160(_address)));
    }

    function _debitFrom(address _from, uint16 _dstChainId, bytes32 _toAddress, uint _amount) internal virtual returns (uint);

    function _creditTo(uint16 _srcChainId, address _toAddress, uint _amount) internal virtual returns (uint);

    function _transferFrom(address _from, address _to, uint _amount) internal virtual returns (uint);

    function _ld2sdRate() internal view virtual returns (uint);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../../../../oz/token/ERC20/ERC20.sol";
import "./BaseOFTV2.sol";

contract OFTV2 is BaseOFTV2, ERC20 {

    error OFTSharedDecimalsMustBeLessThanOrEqualToDecimals(uint8 sharedDecimals, uint8 decimals);

    uint internal immutable ld2sdRate;

    constructor(string memory _name, string memory _symbol, uint8 _sharedDecimals) ERC20(_name, _symbol) BaseOFTV2(_sharedDecimals) {
        uint8 decimals = decimals();
        if (_sharedDecimals > decimals) {
            revert OFTSharedDecimalsMustBeLessThanOrEqualToDecimals(_sharedDecimals, decimals);
        }
        ld2sdRate = 10 ** (decimals - _sharedDecimals);
    }

    function __OFTV2_init(address _lzEndpoint) internal {
       __BaseOFTV2_init(_lzEndpoint);
    }

    /************************************************************************
    * public functions
    ************************************************************************/
    function circulatingSupply() public view virtual override returns (uint) {
        return totalSupply();
    }

    function token() public view virtual override returns (address) {
        return address(this);
    }

    /************************************************************************
    * internal functions
    ************************************************************************/
    function _debitFrom(address _from, uint16, bytes32, uint _amount) internal virtual override returns (uint) {
        address spender = _msgSender();
        if (_from != spender) _spendAllowance(_from, spender, _amount);
        _burn(_from, _amount);
        return _amount;
    }

    function _creditTo(uint16, address _toAddress, uint _amount) internal virtual override returns (uint) {
        _mint(_toAddress, _amount);
        return _amount;
    }

    function _transferFrom(address _from, address _to, uint _amount) internal virtual override returns (uint) {
        address spender = _msgSender();
        // if transfer from this contract, no need to check allowance
        if (_from != address(this) && _from != spender) _spendAllowance(_from, spender, _amount);
        _transfer(_from, _to, _amount);
        return _amount;
    }

    function _ld2sdRate() internal view virtual override returns (uint) {
        return ld2sdRate;
    }
}

// SPDX-License-Identifier: Unlicense
/*
 * @title Solidity Bytes Arrays Utils
 * @author Gonçalo Sá <[email protected]>
 *
 * @dev Bytes tightly packed arrays utility library for ethereum contracts written in Solidity.
 *      The library lets you concatenate, slice and type cast bytes arrays both in memory and storage.
 */
pragma solidity >=0.8.0 <0.9.0;


library BytesLib {
    function concat(
        bytes memory _preBytes,
        bytes memory _postBytes
    )
    internal
    pure
    returns (bytes memory)
    {
        bytes memory tempBytes;

        assembly {
        // Get a location of some free memory and store it in tempBytes as
        // Solidity does for memory variables.
            tempBytes := mload(0x40)

        // Store the length of the first bytes array at the beginning of
        // the memory for tempBytes.
            let length := mload(_preBytes)
            mstore(tempBytes, length)

        // Maintain a memory counter for the current write location in the
        // temp bytes array by adding the 32 bytes for the array length to
        // the starting location.
            let mc := add(tempBytes, 0x20)
        // Stop copying when the memory counter reaches the length of the
        // first bytes array.
            let end := add(mc, length)

            for {
            // Initialize a copy counter to the start of the _preBytes data,
            // 32 bytes into its memory.
                let cc := add(_preBytes, 0x20)
            } lt(mc, end) {
            // Increase both counters by 32 bytes each iteration.
                mc := add(mc, 0x20)
                cc := add(cc, 0x20)
            } {
            // Write the _preBytes data into the tempBytes memory 32 bytes
            // at a time.
                mstore(mc, mload(cc))
            }

        // Add the length of _postBytes to the current length of tempBytes
        // and store it as the new length in the first 32 bytes of the
        // tempBytes memory.
            length := mload(_postBytes)
            mstore(tempBytes, add(length, mload(tempBytes)))

        // Move the memory counter back from a multiple of 0x20 to the
        // actual end of the _preBytes data.
            mc := end
        // Stop copying when the memory counter reaches the new combined
        // length of the arrays.
            end := add(mc, length)

            for {
                let cc := add(_postBytes, 0x20)
            } lt(mc, end) {
                mc := add(mc, 0x20)
                cc := add(cc, 0x20)
            } {
                mstore(mc, mload(cc))
            }

        // Update the free-memory pointer by padding our last write location
        // to 32 bytes: add 31 bytes to the end of tempBytes to move to the
        // next 32 byte block, then round down to the nearest multiple of
        // 32. If the sum of the length of the two arrays is zero then add
        // one before rounding down to leave a blank 32 bytes (the length block with 0).
            mstore(0x40, and(
            add(add(end, iszero(add(length, mload(_preBytes)))), 31),
            not(31) // Round down to the nearest 32 bytes.
            ))
        }

        return tempBytes;
    }

    function concatStorage(bytes storage _preBytes, bytes memory _postBytes) internal {
        assembly {
        // Read the first 32 bytes of _preBytes storage, which is the length
        // of the array. (We don't need to use the offset into the slot
        // because arrays use the entire slot.)
            let fslot := sload(_preBytes.slot)
        // Arrays of 31 bytes or less have an even value in their slot,
        // while longer arrays have an odd value. The actual length is
        // the slot divided by two for odd values, and the lowest order
        // byte divided by two for even values.
        // If the slot is even, bitwise and the slot with 255 and divide by
        // two to get the length. If the slot is odd, bitwise and the slot
        // with -1 and divide by two.
            let slength := div(and(fslot, sub(mul(0x100, iszero(and(fslot, 1))), 1)), 2)
            let mlength := mload(_postBytes)
            let newlength := add(slength, mlength)
        // slength can contain both the length and contents of the array
        // if length < 32 bytes so let's prepare for that
        // v. http://solidity.readthedocs.io/en/latest/miscellaneous.html#layout-of-state-variables-in-storage
            switch add(lt(slength, 32), lt(newlength, 32))
            case 2 {
            // Since the new array still fits in the slot, we just need to
            // update the contents of the slot.
            // uint256(bytes_storage) = uint256(bytes_storage) + uint256(bytes_memory) + new_length
                sstore(
                _preBytes.slot,
                // all the modifications to the slot are inside this
                // next block
                add(
                // we can just add to the slot contents because the
                // bytes we want to change are the LSBs
                fslot,
                add(
                mul(
                div(
                // load the bytes from memory
                mload(add(_postBytes, 0x20)),
                // zero all bytes to the right
                exp(0x100, sub(32, mlength))
                ),
                // and now shift left the number of bytes to
                // leave space for the length in the slot
                exp(0x100, sub(32, newlength))
                ),
                // increase length by the double of the memory
                // bytes length
                mul(mlength, 2)
                )
                )
                )
            }
            case 1 {
            // The stored value fits in the slot, but the combined value
            // will exceed it.
            // get the keccak hash to get the contents of the array
                mstore(0x0, _preBytes.slot)
                let sc := add(keccak256(0x0, 0x20), div(slength, 32))

            // save new length
                sstore(_preBytes.slot, add(mul(newlength, 2), 1))

            // The contents of the _postBytes array start 32 bytes into
            // the structure. Our first read should obtain the `submod`
            // bytes that can fit into the unused space in the last word
            // of the stored array. To get this, we read 32 bytes starting
            // from `submod`, so the data we read overlaps with the array
            // contents by `submod` bytes. Masking the lowest-order
            // `submod` bytes allows us to add that value directly to the
            // stored value.

                let submod := sub(32, slength)
                let mc := add(_postBytes, submod)
                let end := add(_postBytes, mlength)
                let mask := sub(exp(0x100, submod), 1)

                sstore(
                sc,
                add(
                and(
                fslot,
                0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00
                ),
                and(mload(mc), mask)
                )
                )

                for {
                    mc := add(mc, 0x20)
                    sc := add(sc, 1)
                } lt(mc, end) {
                    sc := add(sc, 1)
                    mc := add(mc, 0x20)
                } {
                    sstore(sc, mload(mc))
                }

                mask := exp(0x100, sub(mc, end))

                sstore(sc, mul(div(mload(mc), mask), mask))
            }
            default {
            // get the keccak hash to get the contents of the array
                mstore(0x0, _preBytes.slot)
            // Start copying to the last used word of the stored array.
                let sc := add(keccak256(0x0, 0x20), div(slength, 32))

            // save new length
                sstore(_preBytes.slot, add(mul(newlength, 2), 1))

            // Copy over the first `submod` bytes of the new data as in
            // case 1 above.
                let slengthmod := mod(slength, 32)
                let mlengthmod := mod(mlength, 32)
                let submod := sub(32, slengthmod)
                let mc := add(_postBytes, submod)
                let end := add(_postBytes, mlength)
                let mask := sub(exp(0x100, submod), 1)

                sstore(sc, add(sload(sc), and(mload(mc), mask)))

                for {
                    sc := add(sc, 1)
                    mc := add(mc, 0x20)
                } lt(mc, end) {
                    sc := add(sc, 1)
                    mc := add(mc, 0x20)
                } {
                    sstore(sc, mload(mc))
                }

                mask := exp(0x100, sub(mc, end))

                sstore(sc, mul(div(mload(mc), mask), mask))
            }
        }
    }

    function slice(
        bytes memory _bytes,
        uint256 _start,
        uint256 _length
    )
    internal
    pure
    returns (bytes memory)
    {
        require(_length + 31 >= _length, "slice_overflow");
        require(_bytes.length >= _start + _length, "slice_outOfBounds");

        bytes memory tempBytes;

        assembly {
            switch iszero(_length)
            case 0 {
            // Get a location of some free memory and store it in tempBytes as
            // Solidity does for memory variables.
                tempBytes := mload(0x40)

            // The first word of the slice result is potentially a partial
            // word read from the original array. To read it, we calculate
            // the length of that partial word and start copying that many
            // bytes into the array. The first word we copy will start with
            // data we don't care about, but the last `lengthmod` bytes will
            // land at the beginning of the contents of the new array. When
            // we're done copying, we overwrite the full first word with
            // the actual length of the slice.
                let lengthmod := and(_length, 31)

            // The multiplication in the next line is necessary
            // because when slicing multiples of 32 bytes (lengthmod == 0)
            // the following copy loop was copying the origin's length
            // and then ending prematurely not copying everything it should.
                let mc := add(add(tempBytes, lengthmod), mul(0x20, iszero(lengthmod)))
                let end := add(mc, _length)

                for {
                // The multiplication in the next line has the same exact purpose
                // as the one above.
                    let cc := add(add(add(_bytes, lengthmod), mul(0x20, iszero(lengthmod))), _start)
                } lt(mc, end) {
                    mc := add(mc, 0x20)
                    cc := add(cc, 0x20)
                } {
                    mstore(mc, mload(cc))
                }

                mstore(tempBytes, _length)

            //update free-memory pointer
            //allocating the array padded to 32 bytes like the compiler does now
                mstore(0x40, and(add(mc, 31), not(31)))
            }
            //if we want a zero-length slice let's just return a zero-length array
            default {
                tempBytes := mload(0x40)
            //zero out the 32 bytes slice we are about to return
            //we need to do it because Solidity does not garbage collect
                mstore(tempBytes, 0)

                mstore(0x40, add(tempBytes, 0x20))
            }
        }

        return tempBytes;
    }

    function toAddress(bytes memory _bytes, uint256 _start) internal pure returns (address) {
        require(_bytes.length >= _start + 20, "toAddress_outOfBounds");
        address tempAddress;

        assembly {
            tempAddress := div(mload(add(add(_bytes, 0x20), _start)), 0x1000000000000000000000000)
        }

        return tempAddress;
    }

    function toUint8(bytes memory _bytes, uint256 _start) internal pure returns (uint8) {
        require(_bytes.length >= _start + 1 , "toUint8_outOfBounds");
        uint8 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x1), _start))
        }

        return tempUint;
    }

    function toUint16(bytes memory _bytes, uint256 _start) internal pure returns (uint16) {
        require(_bytes.length >= _start + 2, "toUint16_outOfBounds");
        uint16 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x2), _start))
        }

        return tempUint;
    }

    function toUint32(bytes memory _bytes, uint256 _start) internal pure returns (uint32) {
        require(_bytes.length >= _start + 4, "toUint32_outOfBounds");
        uint32 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x4), _start))
        }

        return tempUint;
    }

    function toUint64(bytes memory _bytes, uint256 _start) internal pure returns (uint64) {
        require(_bytes.length >= _start + 8, "toUint64_outOfBounds");
        uint64 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x8), _start))
        }

        return tempUint;
    }

    function toUint96(bytes memory _bytes, uint256 _start) internal pure returns (uint96) {
        require(_bytes.length >= _start + 12, "toUint96_outOfBounds");
        uint96 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0xc), _start))
        }

        return tempUint;
    }

    function toUint128(bytes memory _bytes, uint256 _start) internal pure returns (uint128) {
        require(_bytes.length >= _start + 16, "toUint128_outOfBounds");
        uint128 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x10), _start))
        }

        return tempUint;
    }

    function toUint256(bytes memory _bytes, uint256 _start) internal pure returns (uint256) {
        require(_bytes.length >= _start + 32, "toUint256_outOfBounds");
        uint256 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x20), _start))
        }

        return tempUint;
    }

    function toBytes32(bytes memory _bytes, uint256 _start) internal pure returns (bytes32) {
        require(_bytes.length >= _start + 32, "toBytes32_outOfBounds");
        bytes32 tempBytes32;

        assembly {
            tempBytes32 := mload(add(add(_bytes, 0x20), _start))
        }

        return tempBytes32;
    }

    function equal(bytes memory _preBytes, bytes memory _postBytes) internal pure returns (bool) {
        bool success = true;

        assembly {
            let length := mload(_preBytes)

        // if lengths don't match the arrays are not equal
            switch eq(length, mload(_postBytes))
            case 1 {
            // cb is a circuit breaker in the for loop since there's
            //  no said feature for inline assembly loops
            // cb = 1 - don't breaker
            // cb = 0 - break
                let cb := 1

                let mc := add(_preBytes, 0x20)
                let end := add(mc, length)

                for {
                    let cc := add(_postBytes, 0x20)
                // the next line is the loop condition:
                // while(uint256(mc < end) + cb == 2)
                } eq(add(lt(mc, end), cb), 2) {
                    mc := add(mc, 0x20)
                    cc := add(cc, 0x20)
                } {
                // if any of these checks fails then arrays are not equal
                    if iszero(eq(mload(mc), mload(cc))) {
                    // unsuccess:
                        success := 0
                        cb := 0
                    }
                }
            }
            default {
            // unsuccess:
                success := 0
            }
        }

        return success;
    }

    function equalStorage(
        bytes storage _preBytes,
        bytes memory _postBytes
    )
    internal
    view
    returns (bool)
    {
        bool success = true;

        assembly {
        // we know _preBytes_offset is 0
            let fslot := sload(_preBytes.slot)
        // Decode the length of the stored array like in concatStorage().
            let slength := div(and(fslot, sub(mul(0x100, iszero(and(fslot, 1))), 1)), 2)
            let mlength := mload(_postBytes)

        // if lengths don't match the arrays are not equal
            switch eq(slength, mlength)
            case 1 {
            // slength can contain both the length and contents of the array
            // if length < 32 bytes so let's prepare for that
            // v. http://solidity.readthedocs.io/en/latest/miscellaneous.html#layout-of-state-variables-in-storage
                if iszero(iszero(slength)) {
                    switch lt(slength, 32)
                    case 1 {
                    // blank the last byte which is the length
                        fslot := mul(div(fslot, 0x100), 0x100)

                        if iszero(eq(fslot, mload(add(_postBytes, 0x20)))) {
                        // unsuccess:
                            success := 0
                        }
                    }
                    default {
                    // cb is a circuit breaker in the for loop since there's
                    //  no said feature for inline assembly loops
                    // cb = 1 - don't breaker
                    // cb = 0 - break
                        let cb := 1

                    // get the keccak hash to get the contents of the array
                        mstore(0x0, _preBytes.slot)
                        let sc := keccak256(0x0, 0x20)

                        let mc := add(_postBytes, 0x20)
                        let end := add(mc, mlength)

                    // the next line is the loop condition:
                    // while(uint256(mc < end) + cb == 2)
                        for {} eq(add(lt(mc, end), cb), 2) {
                            sc := add(sc, 1)
                            mc := add(mc, 0x20)
                        } {
                            if iszero(eq(sload(sc), mload(mc))) {
                            // unsuccess:
                                success := 0
                                cb := 0
                            }
                        }
                    }
                }
            }
            default {
            // unsuccess:
                success := 0
            }
        }

        return success;
    }
}

// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity >=0.7.6;

library ExcessivelySafeCall {
    uint256 constant LOW_28_MASK =
    0x00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff;

    /// @notice Use when you _really_ really _really_ don't trust the called
    /// contract. This prevents the called contract from causing reversion of
    /// the caller in as many ways as we can.
    /// @dev The main difference between this and a solidity low-level call is
    /// that we limit the number of bytes that the callee can cause to be
    /// copied to caller memory. This prevents stupid things like malicious
    /// contracts returning 10,000,000 bytes causing a local OOG when copying
    /// to memory.
    /// @param _target The address to call
    /// @param _gas The amount of gas to forward to the remote contract
    /// @param _maxCopy The maximum number of bytes of returndata to copy
    /// to memory.
    /// @param _calldata The data to send to the remote contract
    /// @return success and returndata, as `.call()`. Returndata is capped to
    /// `_maxCopy` bytes.
    function excessivelySafeCall(
        address _target,
        uint256 _gas,
        uint16 _maxCopy,
        bytes memory _calldata
    ) internal returns (bool, bytes memory) {
        // set up for assembly call
        uint256 _toCopy;
        bool _success;
        bytes memory _returnData = new bytes(_maxCopy);
        // dispatch message to recipient
        // by assembly calling "handle" function
        // we call via assembly to avoid memcopying a very large returndata
        // returned by a malicious contract
        assembly {
            _success := call(
            _gas, // gas
            _target, // recipient
            0, // ether value
            add(_calldata, 0x20), // inloc
            mload(_calldata), // inlen
            0, // outloc
            0 // outlen
            )
        // limit our copy to 256 bytes
            _toCopy := returndatasize()
            if gt(_toCopy, _maxCopy) {
                _toCopy := _maxCopy
            }
        // Store the length of the copied bytes
            mstore(_returnData, _toCopy)
        // copy the bytes from returndata[0:_toCopy]
            returndatacopy(add(_returnData, 0x20), 0, _toCopy)
        }
        return (_success, _returnData);
    }

    /// @notice Use when you _really_ really _really_ don't trust the called
    /// contract. This prevents the called contract from causing reversion of
    /// the caller in as many ways as we can.
    /// @dev The main difference between this and a solidity low-level call is
    /// that we limit the number of bytes that the callee can cause to be
    /// copied to caller memory. This prevents stupid things like malicious
    /// contracts returning 10,000,000 bytes causing a local OOG when copying
    /// to memory.
    /// @param _target The address to call
    /// @param _gas The amount of gas to forward to the remote contract
    /// @param _maxCopy The maximum number of bytes of returndata to copy
    /// to memory.
    /// @param _calldata The data to send to the remote contract
    /// @return success and returndata, as `.call()`. Returndata is capped to
    /// `_maxCopy` bytes.
    function excessivelySafeStaticCall(
        address _target,
        uint256 _gas,
        uint16 _maxCopy,
        bytes memory _calldata
    ) internal view returns (bool, bytes memory) {
        // set up for assembly call
        uint256 _toCopy;
        bool _success;
        bytes memory _returnData = new bytes(_maxCopy);
        // dispatch message to recipient
        // by assembly calling "handle" function
        // we call via assembly to avoid memcopying a very large returndata
        // returned by a malicious contract
        assembly {
            _success := staticcall(
            _gas, // gas
            _target, // recipient
            add(_calldata, 0x20), // inloc
            mload(_calldata), // inlen
            0, // outloc
            0 // outlen
            )
        // limit our copy to 256 bytes
            _toCopy := returndatasize()
            if gt(_toCopy, _maxCopy) {
                _toCopy := _maxCopy
            }
        // Store the length of the copied bytes
            mstore(_returnData, _toCopy)
        // copy the bytes from returndata[0:_toCopy]
            returndatacopy(add(_returnData, 0x20), 0, _toCopy)
        }
        return (_success, _returnData);
    }

    /**
     * @notice Swaps function selectors in encoded contract calls
     * @dev Allows reuse of encoded calldata for functions with identical
     * argument types but different names. It simply swaps out the first 4 bytes
     * for the new selector. This function modifies memory in place, and should
     * only be used with caution.
     * @param _newSelector The new 4-byte selector
     * @param _buf The encoded contract args
     */
    function swapSelector(bytes4 _newSelector, bytes memory _buf)
    internal
    pure
    {
        require(_buf.length >= 4);
        uint256 _mask = LOW_28_MASK;
        assembly {
        // load the first word of
            let _word := mload(add(_buf, 0x20))
        // mask out the top 4 bytes
        // /x
            _word := and(_word, _mask)
            _word := or(_newSelector, _word)
            mstore(add(_buf, 0x20), _word)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    error OnlyOwner();
    error NewOwnerIsZeroAddress();

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OnlyOwner();
        }
    }

    /**
     * @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 NewOwnerIsZeroAddress();
        }
        _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 v4.9.0) (governance/utils/IVotes.sol)
pragma solidity ^0.8.0;

/**
 * @dev Common interface for {ERC20Votes}, {ERC721Votes}, and other {Votes}-enabled contracts.
 *
 * _Available since v4.5._
 */
interface IVotes {
    /**
     * @dev Emitted when an account changes their delegate.
     */
    event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);

    /**
     * @dev Emitted when a token transfer or delegate change results in changes to a delegate's number of votes.
     */
    event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance);

    /**
     * @dev Returns the current amount of votes that `account` has.
     */
    function getVotes(address account) external view returns (uint256);

    /**
     * @dev Returns the amount of votes that `account` had at a specific moment in the past. If the `clock()` is
     * configured to use block numbers, this will return the value at the end of the corresponding block.
     */
    function getPastVotes(address account, uint256 timepoint) external view returns (uint256);

    /**
     * @dev Returns the total supply of votes available at a specific moment in the past. If the `clock()` is
     * configured to use block numbers, this will return the value at the end of the corresponding block.
     *
     * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes.
     * Votes that have not been delegated are still part of total supply, even though they would not participate in a
     * vote.
     */
    function getPastTotalSupply(uint256 timepoint) external view returns (uint256);

    /**
     * @dev Returns the delegate that `account` has chosen.
     */
    function delegates(address account) external view returns (address);

    /**
     * @dev Delegates votes from the sender to `delegatee`.
     */
    function delegate(address delegatee) external;

    /**
     * @dev Delegates votes from signer to `delegatee`.
     */
    function delegateBySig(address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.0;

interface IERC5267 {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5805.sol)

pragma solidity ^0.8.0;

import "../governance/utils/IVotes.sol";
import "./IERC6372.sol";

interface IERC5805 is IERC6372, IVotes {}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC6372.sol)

pragma solidity ^0.8.0;

interface IERC6372 {
    /**
     * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based checkpoints (and voting).
     */
    function clock() external view returns (uint48);

    /**
     * @dev Description of the clock
     */
    // solhint-disable-next-line func-name-mixedcase
    function CLOCK_MODE() external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {

    error ERC20DecreasedAllowanceBelowZero();
    error ERC20TransferToZeroAddress();
    error ERC20TransferFromZeroAddress();
    error ERC20TransferExceedsBalance();
    error ERC20MintToZeroAddress();
    error ERC20ApproveFromZeroAddress();
    error ERC20ApproveToZeroAddress();
    error ERC20TransferExceedsAllowance();

    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance < subtractedValue) {
            revert ERC20DecreasedAllowanceBelowZero();
        }
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(address from, address to, uint256 amount) internal virtual {
        if (from == address(0)) {
            revert ERC20TransferFromZeroAddress();
        }
        if (to == address(0)) {
            revert ERC20TransferToZeroAddress();
        }

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        if (fromBalance < amount) {
            revert ERC20TransferExceedsBalance();
        }
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        if (account == address(0)) {
            revert ERC20MintToZeroAddress();
        }

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        if (owner == address(0)) {
            revert ERC20ApproveFromZeroAddress();
        }
        if (spender == address(0)) {
            revert ERC20ApproveToZeroAddress();
        }

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < amount) {
                revert ERC20TransferExceedsAllowance();
            }
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/ERC20Permit.sol)

pragma solidity ^0.8.0;

import "./IERC20Permit.sol";
import "../ERC20.sol";
import "../../../utils/cryptography/ECDSA.sol";
import "../../../utils/cryptography/EIP712.sol";
import "../../../utils/Counters.sol";

/**
 * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * _Available since v3.4._
 */
abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712 {
    using Counters for Counters.Counter;

    error ERC20PermitExpired();
    error ERC20PermitInvalidSignature();

    mapping(address => Counters.Counter) private _nonces;

    // solhint-disable-next-line var-name-mixedcase
    bytes32 private constant _PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    /**
     * @dev In previous versions `_PERMIT_TYPEHASH` was declared as `immutable`.
     * However, to ensure consistency with the upgradeable transpiler, we will continue
     * to reserve a slot.
     * @custom:oz-renamed-from _PERMIT_TYPEHASH
     */
    // solhint-disable-next-line var-name-mixedcase
    bytes32 private _PERMIT_TYPEHASH_DEPRECATED_SLOT;

    /**
     * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
     *
     * It's a good idea to use the same `name` that is defined as the ERC20 token name.
     */
    constructor(string memory name) EIP712(name, "1") {}

    /**
     * @dev See {IERC20Permit-permit}.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual override {
        if (block.timestamp > deadline) {
            revert ERC20PermitExpired();
        }

        bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSA.recover(hash, v, r, s);
        if (signer != owner) {
            revert ERC20PermitInvalidSignature();
        }

        _approve(owner, spender, value);
    }

    /**
     * @dev See {IERC20Permit-nonces}.
     */
    function nonces(address owner) public view virtual override returns (uint256) {
        return _nonces[owner].current();
    }

    /**
     * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view override returns (bytes32) {
        return _domainSeparatorV4();
    }

    /**
     * @dev "Consume a nonce": return the current value and increment.
     *
     * _Available since v4.1._
     */
    function _useNonce(address owner) internal virtual returns (uint256 current) {
        Counters.Counter storage nonce = _nonces[owner];
        current = nonce.current();
        nonce.increment();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/ERC20Votes.sol)

pragma solidity ^0.8.0;

import "./ERC20Permit.sol";
import "../../../interfaces/IERC5805.sol";
import "../../../utils/math/Math.sol";
import "../../../utils/math/SafeCast.sol";
import "../../../utils/cryptography/ECDSA.sol";

/**
 * @dev Extension of ERC20 to support Compound-like voting and delegation. This version is more generic than Compound's,
 * and supports token supply up to 2^224^ - 1, while COMP is limited to 2^96^ - 1.
 *
 * NOTE: If exact COMP compatibility is required, use the {ERC20VotesComp} variant of this module.
 *
 * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either
 * by calling the {delegate} function directly, or by providing a signature to be used with {delegateBySig}. Voting
 * power can be queried through the public accessors {getVotes} and {getPastVotes}.
 *
 * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it
 * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked.
 *
 * _Available since v4.2._
 */
abstract contract ERC20Votes is ERC20Permit, IERC5805 {
    struct Checkpoint {
        uint32 fromBlock;
        uint224 votes;
    }

    error ERC20VotesBrokenClock();
    error ERC20VotesSupplyOverflow();
    error ERC20VotesFutureLookup();
    error ERC20VotesSignatureExpired();
    error ERC20VotesInvalidNonce();

    bytes32 private constant _DELEGATION_TYPEHASH =
        keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");

    mapping(address => address) private _delegates;
    mapping(address => Checkpoint[]) private _checkpoints;
    Checkpoint[] private _totalSupplyCheckpoints;

    /**
     * @dev Clock used for flagging checkpoints. Can be overridden to implement timestamp based checkpoints (and voting).
     */
    function clock() public view virtual override returns (uint48) {
        return SafeCast.toUint48(block.number);
    }

    /**
     * @dev Description of the clock
     */
    // solhint-disable-next-line func-name-mixedcase
    function CLOCK_MODE() public view virtual override returns (string memory) {
        // Check that the clock was not modified
        if (clock() != block.number) {
            revert ERC20VotesBrokenClock();
        }
        return "mode=blocknumber&from=default";
    }

    /**
     * @dev Get the `pos`-th checkpoint for `account`.
     */
    function checkpoints(address account, uint32 pos) public view virtual returns (Checkpoint memory) {
        return _checkpoints[account][pos];
    }

    /**
     * @dev Get number of checkpoints for `account`.
     */
    function numCheckpoints(address account) public view virtual returns (uint32) {
        return SafeCast.toUint32(_checkpoints[account].length);
    }

    /**
     * @dev Get the address `account` is currently delegating to.
     */
    function delegates(address account) public view virtual override returns (address) {
        return _delegates[account];
    }

    /**
     * @dev Gets the current votes balance for `account`
     */
    function getVotes(address account) public view virtual override returns (uint256) {
        uint256 pos = _checkpoints[account].length;
        unchecked {
            return pos == 0 ? 0 : _checkpoints[account][pos - 1].votes;
        }
    }

    /**
     * @dev Retrieve the number of votes for `account` at the end of `timepoint`.
     *
     * Requirements:
     *
     * - `timepoint` must be in the past
     */
    function getPastVotes(address account, uint256 timepoint) public view virtual override returns (uint256) {
        if (timepoint >= clock()) {
            revert ERC20VotesFutureLookup();
        }
        return _checkpointsLookup(_checkpoints[account], timepoint);
    }

    /**
     * @dev Retrieve the `totalSupply` at the end of `timepoint`. Note, this value is the sum of all balances.
     * It is NOT the sum of all the delegated votes!
     *
     * Requirements:
     *
     * - `timepoint` must be in the past
     */
    function getPastTotalSupply(uint256 timepoint) public view virtual override returns (uint256) {
        if (timepoint >= clock()) {
            revert ERC20VotesFutureLookup();
        }
        return _checkpointsLookup(_totalSupplyCheckpoints, timepoint);
    }

    /**
     * @dev Lookup a value in a list of (sorted) checkpoints.
     */
    function _checkpointsLookup(Checkpoint[] storage ckpts, uint256 timepoint) private view returns (uint256) {
        // We run a binary search to look for the last (most recent) checkpoint taken before (or at) `timepoint`.
        //
        // Initially we check if the block is recent to narrow the search range.
        // During the loop, the index of the wanted checkpoint remains in the range [low-1, high).
        // With each iteration, either `low` or `high` is moved towards the middle of the range to maintain the invariant.
        // - If the middle checkpoint is after `timepoint`, we look in [low, mid)
        // - If the middle checkpoint is before or equal to `timepoint`, we look in [mid+1, high)
        // Once we reach a single value (when low == high), we've found the right checkpoint at the index high-1, if not
        // out of bounds (in which case we're looking too far in the past and the result is 0).
        // Note that if the latest checkpoint available is exactly for `timepoint`, we end up with an index that is
        // past the end of the array, so we technically don't find a checkpoint after `timepoint`, but it works out
        // the same.
        uint256 length = ckpts.length;

        uint256 low = 0;
        uint256 high = length;

        if (length > 5) {
            uint256 mid = length - Math.sqrt(length);
            if (_unsafeAccess(ckpts, mid).fromBlock > timepoint) {
                high = mid;
            } else {
                low = mid + 1;
            }
        }

        while (low < high) {
            uint256 mid = Math.average(low, high);
            if (_unsafeAccess(ckpts, mid).fromBlock > timepoint) {
                high = mid;
            } else {
                low = mid + 1;
            }
        }

        unchecked {
            return high == 0 ? 0 : _unsafeAccess(ckpts, high - 1).votes;
        }
    }

    /**
     * @dev Delegate votes from the sender to `delegatee`.
     */
    function delegate(address delegatee) public virtual override {
        _delegate(_msgSender(), delegatee);
    }

    /**
     * @dev Delegates votes from signer to `delegatee`
     */
    function delegateBySig(
        address delegatee,
        uint256 nonce,
        uint256 expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual override {
        if (block.timestamp > expiry) {
            revert ERC20VotesSignatureExpired();
        }
        address signer = ECDSA.recover(
            _hashTypedDataV4(keccak256(abi.encode(_DELEGATION_TYPEHASH, delegatee, nonce, expiry))),
            v,
            r,
            s
        );
        if (nonce != _useNonce(signer)) {
            revert ERC20VotesInvalidNonce();
        }
        _delegate(signer, delegatee);
    }

    /**
     * @dev Maximum token supply. Defaults to `type(uint224).max` (2^224^ - 1).
     */
    function _maxSupply() internal view virtual returns (uint224) {
        return type(uint224).max;
    }

    /**
     * @dev Snapshots the totalSupply after it has been increased.
     */
    function _mint(address account, uint256 amount) internal virtual override {
        super._mint(account, amount);
        if (totalSupply() > _maxSupply()) {
            revert ERC20VotesSupplyOverflow();
        }

        _writeCheckpoint(_totalSupplyCheckpoints, _add, amount);
    }

    /**
     * @dev Snapshots the totalSupply after it has been decreased.
     */
    function _burn(address account, uint256 amount) internal virtual override {
        super._burn(account, amount);

        _writeCheckpoint(_totalSupplyCheckpoints, _subtract, amount);
    }

    /**
     * @dev Move voting power when tokens are transferred.
     *
     * Emits a {IVotes-DelegateVotesChanged} event.
     */
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual override {
        super._afterTokenTransfer(from, to, amount);

        _moveVotingPower(delegates(from), delegates(to), amount);
    }

    /**
     * @dev Change delegation for `delegator` to `delegatee`.
     *
     * Emits events {IVotes-DelegateChanged} and {IVotes-DelegateVotesChanged}.
     */
    function _delegate(address delegator, address delegatee) internal virtual {
        address currentDelegate = delegates(delegator);
        uint256 delegatorBalance = balanceOf(delegator);
        _delegates[delegator] = delegatee;

        emit DelegateChanged(delegator, currentDelegate, delegatee);

        _moveVotingPower(currentDelegate, delegatee, delegatorBalance);
    }

    function _moveVotingPower(address src, address dst, uint256 amount) private {
        if (src != dst && amount > 0) {
            if (src != address(0)) {
                (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[src], _subtract, amount);
                emit DelegateVotesChanged(src, oldWeight, newWeight);
            }

            if (dst != address(0)) {
                (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[dst], _add, amount);
                emit DelegateVotesChanged(dst, oldWeight, newWeight);
            }
        }
    }

    function _writeCheckpoint(
        Checkpoint[] storage ckpts,
        function(uint256, uint256) view returns (uint256) op,
        uint256 delta
    ) private returns (uint256 oldWeight, uint256 newWeight) {
        uint256 pos = ckpts.length;

        unchecked {
            Checkpoint memory oldCkpt = pos == 0 ? Checkpoint(0, 0) : _unsafeAccess(ckpts, pos - 1);

            oldWeight = oldCkpt.votes;
            newWeight = op(oldWeight, delta);

            if (pos > 0 && oldCkpt.fromBlock == clock()) {
                _unsafeAccess(ckpts, pos - 1).votes = SafeCast.toUint224(newWeight);
            } else {
                ckpts.push(Checkpoint({fromBlock: SafeCast.toUint32(clock()), votes: SafeCast.toUint224(newWeight)}));
            }
        }
    }

    function _add(uint256 a, uint256 b) private pure returns (uint256) {
        return a + b;
    }

    function _subtract(uint256 a, uint256 b) private pure returns (uint256) {
        return a - b;
    }

    /**
     * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds.
     */
    function _unsafeAccess(Checkpoint[] storage ckpts, uint256 pos) private pure returns (Checkpoint storage result) {
        assembly {
            mstore(0, ckpts.slot)
            result.slot := add(keccak256(0, 0x20), pos)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    error SafeERC20ApproveFromNonZeroToNonZeroAllowance();
    error SafeERC20DecreaseAllowanceBelowZero();
    error SafeERC20PermitInvalidNonce();
    error SafeERC20ERC20OperationFailed();

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        if ((value != 0) && (token.allowance(address(this), spender) != 0)) {
            revert SafeERC20ApproveFromNonZeroToNonZeroAllowance();
        }
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            if (oldAllowance < value) {
                revert SafeERC20DecreaseAllowanceBelowZero();
            }
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        if (nonceAfter != nonceBefore + 1) {
            revert SafeERC20PermitInvalidNonce();
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20ERC20OperationFailed();
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

// 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 Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.8;

import "./ECDSA.sol";
import "../ShortStrings.sol";
import "../../interfaces/IERC5267.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * _Available since v3.4._
 *
 * @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
 */
abstract contract EIP712 is IERC5267 {
    using ShortStrings for *;

    bytes32 private constant _TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _cachedDomainSeparator;
    uint256 private immutable _cachedChainId;
    address private immutable _cachedThis;

    bytes32 private immutable _hashedName;
    bytes32 private immutable _hashedVersion;

    ShortString private immutable _name;
    ShortString private immutable _version;
    string private _nameFallback;
    string private _versionFallback;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        _name = name.toShortStringWithFallback(_nameFallback);
        _version = version.toShortStringWithFallback(_versionFallback);
        _hashedName = keccak256(bytes(name));
        _hashedVersion = keccak256(bytes(version));

        _cachedChainId = block.chainid;
        _cachedDomainSeparator = _buildDomainSeparator();
        _cachedThis = address(this);
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _cachedThis && block.chainid == _cachedChainId) {
            return _cachedDomainSeparator;
        } else {
            return _buildDomainSeparator();
        }
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(_TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {EIP-5267}.
     *
     * _Available since v4.9._
     */
    function eip712Domain()
        public
        view
        virtual
        override
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        return (
            hex"0f", // 01111
            _name.toStringWithFallback(_nameFallback),
            _version.toStringWithFallback(_versionFallback),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// 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
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.

pragma solidity ^0.8.0;

/**
 * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
 * checks.
 *
 * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
 * easily result in undesired exploitation or bugs, since developers usually
 * assume that overflows raise errors. `SafeCast` restores this intuition by
 * reverting the transaction when such an operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 *
 * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing
 * all math on `uint256` and `int256` and then downcasting.
 */
library SafeCast {
    /**
     * @dev Returns the downcasted uint248 from uint256, reverting on
     * overflow (when the input is greater than largest uint248).
     *
     * Counterpart to Solidity's `uint248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     *
     * _Available since v4.7._
     */
    function toUint248(uint256 value) internal pure returns (uint248) {
        require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits");
        return uint248(value);
    }

    /**
     * @dev Returns the downcasted uint240 from uint256, reverting on
     * overflow (when the input is greater than largest uint240).
     *
     * Counterpart to Solidity's `uint240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     *
     * _Available since v4.7._
     */
    function toUint240(uint256 value) internal pure returns (uint240) {
        require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits");
        return uint240(value);
    }

    /**
     * @dev Returns the downcasted uint232 from uint256, reverting on
     * overflow (when the input is greater than largest uint232).
     *
     * Counterpart to Solidity's `uint232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     *
     * _Available since v4.7._
     */
    function toUint232(uint256 value) internal pure returns (uint232) {
        require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits");
        return uint232(value);
    }

    /**
     * @dev Returns the downcasted uint224 from uint256, reverting on
     * overflow (when the input is greater than largest uint224).
     *
     * Counterpart to Solidity's `uint224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     *
     * _Available since v4.2._
     */
    function toUint224(uint256 value) internal pure returns (uint224) {
        require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits");
        return uint224(value);
    }

    /**
     * @dev Returns the downcasted uint216 from uint256, reverting on
     * overflow (when the input is greater than largest uint216).
     *
     * Counterpart to Solidity's `uint216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     *
     * _Available since v4.7._
     */
    function toUint216(uint256 value) internal pure returns (uint216) {
        require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits");
        return uint216(value);
    }

    /**
     * @dev Returns the downcasted uint208 from uint256, reverting on
     * overflow (when the input is greater than largest uint208).
     *
     * Counterpart to Solidity's `uint208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     *
     * _Available since v4.7._
     */
    function toUint208(uint256 value) internal pure returns (uint208) {
        require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits");
        return uint208(value);
    }

    /**
     * @dev Returns the downcasted uint200 from uint256, reverting on
     * overflow (when the input is greater than largest uint200).
     *
     * Counterpart to Solidity's `uint200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     *
     * _Available since v4.7._
     */
    function toUint200(uint256 value) internal pure returns (uint200) {
        require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits");
        return uint200(value);
    }

    /**
     * @dev Returns the downcasted uint192 from uint256, reverting on
     * overflow (when the input is greater than largest uint192).
     *
     * Counterpart to Solidity's `uint192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     *
     * _Available since v4.7._
     */
    function toUint192(uint256 value) internal pure returns (uint192) {
        require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits");
        return uint192(value);
    }

    /**
     * @dev Returns the downcasted uint184 from uint256, reverting on
     * overflow (when the input is greater than largest uint184).
     *
     * Counterpart to Solidity's `uint184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     *
     * _Available since v4.7._
     */
    function toUint184(uint256 value) internal pure returns (uint184) {
        require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits");
        return uint184(value);
    }

    /**
     * @dev Returns the downcasted uint176 from uint256, reverting on
     * overflow (when the input is greater than largest uint176).
     *
     * Counterpart to Solidity's `uint176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     *
     * _Available since v4.7._
     */
    function toUint176(uint256 value) internal pure returns (uint176) {
        require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits");
        return uint176(value);
    }

    /**
     * @dev Returns the downcasted uint168 from uint256, reverting on
     * overflow (when the input is greater than largest uint168).
     *
     * Counterpart to Solidity's `uint168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     *
     * _Available since v4.7._
     */
    function toUint168(uint256 value) internal pure returns (uint168) {
        require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits");
        return uint168(value);
    }

    /**
     * @dev Returns the downcasted uint160 from uint256, reverting on
     * overflow (when the input is greater than largest uint160).
     *
     * Counterpart to Solidity's `uint160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     *
     * _Available since v4.7._
     */
    function toUint160(uint256 value) internal pure returns (uint160) {
        require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits");
        return uint160(value);
    }

    /**
     * @dev Returns the downcasted uint152 from uint256, reverting on
     * overflow (when the input is greater than largest uint152).
     *
     * Counterpart to Solidity's `uint152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     *
     * _Available since v4.7._
     */
    function toUint152(uint256 value) internal pure returns (uint152) {
        require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits");
        return uint152(value);
    }

    /**
     * @dev Returns the downcasted uint144 from uint256, reverting on
     * overflow (when the input is greater than largest uint144).
     *
     * Counterpart to Solidity's `uint144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     *
     * _Available since v4.7._
     */
    function toUint144(uint256 value) internal pure returns (uint144) {
        require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits");
        return uint144(value);
    }

    /**
     * @dev Returns the downcasted uint136 from uint256, reverting on
     * overflow (when the input is greater than largest uint136).
     *
     * Counterpart to Solidity's `uint136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     *
     * _Available since v4.7._
     */
    function toUint136(uint256 value) internal pure returns (uint136) {
        require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits");
        return uint136(value);
    }

    /**
     * @dev Returns the downcasted uint128 from uint256, reverting on
     * overflow (when the input is greater than largest uint128).
     *
     * Counterpart to Solidity's `uint128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     *
     * _Available since v2.5._
     */
    function toUint128(uint256 value) internal pure returns (uint128) {
        require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits");
        return uint128(value);
    }

    /**
     * @dev Returns the downcasted uint120 from uint256, reverting on
     * overflow (when the input is greater than largest uint120).
     *
     * Counterpart to Solidity's `uint120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     *
     * _Available since v4.7._
     */
    function toUint120(uint256 value) internal pure returns (uint120) {
        require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits");
        return uint120(value);
    }

    /**
     * @dev Returns the downcasted uint112 from uint256, reverting on
     * overflow (when the input is greater than largest uint112).
     *
     * Counterpart to Solidity's `uint112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     *
     * _Available since v4.7._
     */
    function toUint112(uint256 value) internal pure returns (uint112) {
        require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits");
        return uint112(value);
    }

    /**
     * @dev Returns the downcasted uint104 from uint256, reverting on
     * overflow (when the input is greater than largest uint104).
     *
     * Counterpart to Solidity's `uint104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     *
     * _Available since v4.7._
     */
    function toUint104(uint256 value) internal pure returns (uint104) {
        require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits");
        return uint104(value);
    }

    /**
     * @dev Returns the downcasted uint96 from uint256, reverting on
     * overflow (when the input is greater than largest uint96).
     *
     * Counterpart to Solidity's `uint96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     *
     * _Available since v4.2._
     */
    function toUint96(uint256 value) internal pure returns (uint96) {
        require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits");
        return uint96(value);
    }

    /**
     * @dev Returns the downcasted uint88 from uint256, reverting on
     * overflow (when the input is greater than largest uint88).
     *
     * Counterpart to Solidity's `uint88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     *
     * _Available since v4.7._
     */
    function toUint88(uint256 value) internal pure returns (uint88) {
        require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits");
        return uint88(value);
    }

    /**
     * @dev Returns the downcasted uint80 from uint256, reverting on
     * overflow (when the input is greater than largest uint80).
     *
     * Counterpart to Solidity's `uint80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     *
     * _Available since v4.7._
     */
    function toUint80(uint256 value) internal pure returns (uint80) {
        require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits");
        return uint80(value);
    }

    /**
     * @dev Returns the downcasted uint72 from uint256, reverting on
     * overflow (when the input is greater than largest uint72).
     *
     * Counterpart to Solidity's `uint72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     *
     * _Available since v4.7._
     */
    function toUint72(uint256 value) internal pure returns (uint72) {
        require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits");
        return uint72(value);
    }

    /**
     * @dev Returns the downcasted uint64 from uint256, reverting on
     * overflow (when the input is greater than largest uint64).
     *
     * Counterpart to Solidity's `uint64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     *
     * _Available since v2.5._
     */
    function toUint64(uint256 value) internal pure returns (uint64) {
        require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits");
        return uint64(value);
    }

    /**
     * @dev Returns the downcasted uint56 from uint256, reverting on
     * overflow (when the input is greater than largest uint56).
     *
     * Counterpart to Solidity's `uint56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     *
     * _Available since v4.7._
     */
    function toUint56(uint256 value) internal pure returns (uint56) {
        require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits");
        return uint56(value);
    }

    /**
     * @dev Returns the downcasted uint48 from uint256, reverting on
     * overflow (when the input is greater than largest uint48).
     *
     * Counterpart to Solidity's `uint48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     *
     * _Available since v4.7._
     */
    function toUint48(uint256 value) internal pure returns (uint48) {
        require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits");
        return uint48(value);
    }

    /**
     * @dev Returns the downcasted uint40 from uint256, reverting on
     * overflow (when the input is greater than largest uint40).
     *
     * Counterpart to Solidity's `uint40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     *
     * _Available since v4.7._
     */
    function toUint40(uint256 value) internal pure returns (uint40) {
        require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits");
        return uint40(value);
    }

    /**
     * @dev Returns the downcasted uint32 from uint256, reverting on
     * overflow (when the input is greater than largest uint32).
     *
     * Counterpart to Solidity's `uint32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     *
     * _Available since v2.5._
     */
    function toUint32(uint256 value) internal pure returns (uint32) {
        require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits");
        return uint32(value);
    }

    /**
     * @dev Returns the downcasted uint24 from uint256, reverting on
     * overflow (when the input is greater than largest uint24).
     *
     * Counterpart to Solidity's `uint24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     *
     * _Available since v4.7._
     */
    function toUint24(uint256 value) internal pure returns (uint24) {
        require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits");
        return uint24(value);
    }

    /**
     * @dev Returns the downcasted uint16 from uint256, reverting on
     * overflow (when the input is greater than largest uint16).
     *
     * Counterpart to Solidity's `uint16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     *
     * _Available since v2.5._
     */
    function toUint16(uint256 value) internal pure returns (uint16) {
        require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits");
        return uint16(value);
    }

    /**
     * @dev Returns the downcasted uint8 from uint256, reverting on
     * overflow (when the input is greater than largest uint8).
     *
     * Counterpart to Solidity's `uint8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     *
     * _Available since v2.5._
     */
    function toUint8(uint256 value) internal pure returns (uint8) {
        require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits");
        return uint8(value);
    }

    /**
     * @dev Converts a signed int256 into an unsigned uint256.
     *
     * Requirements:
     *
     * - input must be greater than or equal to 0.
     *
     * _Available since v3.0._
     */
    function toUint256(int256 value) internal pure returns (uint256) {
        require(value >= 0, "SafeCast: value must be positive");
        return uint256(value);
    }

    /**
     * @dev Returns the downcasted int248 from int256, reverting on
     * overflow (when the input is less than smallest int248 or
     * greater than largest int248).
     *
     * Counterpart to Solidity's `int248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     *
     * _Available since v4.7._
     */
    function toInt248(int256 value) internal pure returns (int248 downcasted) {
        downcasted = int248(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 248 bits");
    }

    /**
     * @dev Returns the downcasted int240 from int256, reverting on
     * overflow (when the input is less than smallest int240 or
     * greater than largest int240).
     *
     * Counterpart to Solidity's `int240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     *
     * _Available since v4.7._
     */
    function toInt240(int256 value) internal pure returns (int240 downcasted) {
        downcasted = int240(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 240 bits");
    }

    /**
     * @dev Returns the downcasted int232 from int256, reverting on
     * overflow (when the input is less than smallest int232 or
     * greater than largest int232).
     *
     * Counterpart to Solidity's `int232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     *
     * _Available since v4.7._
     */
    function toInt232(int256 value) internal pure returns (int232 downcasted) {
        downcasted = int232(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 232 bits");
    }

    /**
     * @dev Returns the downcasted int224 from int256, reverting on
     * overflow (when the input is less than smallest int224 or
     * greater than largest int224).
     *
     * Counterpart to Solidity's `int224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     *
     * _Available since v4.7._
     */
    function toInt224(int256 value) internal pure returns (int224 downcasted) {
        downcasted = int224(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 224 bits");
    }

    /**
     * @dev Returns the downcasted int216 from int256, reverting on
     * overflow (when the input is less than smallest int216 or
     * greater than largest int216).
     *
     * Counterpart to Solidity's `int216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     *
     * _Available since v4.7._
     */
    function toInt216(int256 value) internal pure returns (int216 downcasted) {
        downcasted = int216(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 216 bits");
    }

    /**
     * @dev Returns the downcasted int208 from int256, reverting on
     * overflow (when the input is less than smallest int208 or
     * greater than largest int208).
     *
     * Counterpart to Solidity's `int208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     *
     * _Available since v4.7._
     */
    function toInt208(int256 value) internal pure returns (int208 downcasted) {
        downcasted = int208(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 208 bits");
    }

    /**
     * @dev Returns the downcasted int200 from int256, reverting on
     * overflow (when the input is less than smallest int200 or
     * greater than largest int200).
     *
     * Counterpart to Solidity's `int200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     *
     * _Available since v4.7._
     */
    function toInt200(int256 value) internal pure returns (int200 downcasted) {
        downcasted = int200(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 200 bits");
    }

    /**
     * @dev Returns the downcasted int192 from int256, reverting on
     * overflow (when the input is less than smallest int192 or
     * greater than largest int192).
     *
     * Counterpart to Solidity's `int192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     *
     * _Available since v4.7._
     */
    function toInt192(int256 value) internal pure returns (int192 downcasted) {
        downcasted = int192(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 192 bits");
    }

    /**
     * @dev Returns the downcasted int184 from int256, reverting on
     * overflow (when the input is less than smallest int184 or
     * greater than largest int184).
     *
     * Counterpart to Solidity's `int184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     *
     * _Available since v4.7._
     */
    function toInt184(int256 value) internal pure returns (int184 downcasted) {
        downcasted = int184(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 184 bits");
    }

    /**
     * @dev Returns the downcasted int176 from int256, reverting on
     * overflow (when the input is less than smallest int176 or
     * greater than largest int176).
     *
     * Counterpart to Solidity's `int176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     *
     * _Available since v4.7._
     */
    function toInt176(int256 value) internal pure returns (int176 downcasted) {
        downcasted = int176(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 176 bits");
    }

    /**
     * @dev Returns the downcasted int168 from int256, reverting on
     * overflow (when the input is less than smallest int168 or
     * greater than largest int168).
     *
     * Counterpart to Solidity's `int168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     *
     * _Available since v4.7._
     */
    function toInt168(int256 value) internal pure returns (int168 downcasted) {
        downcasted = int168(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 168 bits");
    }

    /**
     * @dev Returns the downcasted int160 from int256, reverting on
     * overflow (when the input is less than smallest int160 or
     * greater than largest int160).
     *
     * Counterpart to Solidity's `int160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     *
     * _Available since v4.7._
     */
    function toInt160(int256 value) internal pure returns (int160 downcasted) {
        downcasted = int160(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 160 bits");
    }

    /**
     * @dev Returns the downcasted int152 from int256, reverting on
     * overflow (when the input is less than smallest int152 or
     * greater than largest int152).
     *
     * Counterpart to Solidity's `int152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     *
     * _Available since v4.7._
     */
    function toInt152(int256 value) internal pure returns (int152 downcasted) {
        downcasted = int152(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 152 bits");
    }

    /**
     * @dev Returns the downcasted int144 from int256, reverting on
     * overflow (when the input is less than smallest int144 or
     * greater than largest int144).
     *
     * Counterpart to Solidity's `int144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     *
     * _Available since v4.7._
     */
    function toInt144(int256 value) internal pure returns (int144 downcasted) {
        downcasted = int144(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 144 bits");
    }

    /**
     * @dev Returns the downcasted int136 from int256, reverting on
     * overflow (when the input is less than smallest int136 or
     * greater than largest int136).
     *
     * Counterpart to Solidity's `int136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     *
     * _Available since v4.7._
     */
    function toInt136(int256 value) internal pure returns (int136 downcasted) {
        downcasted = int136(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 136 bits");
    }

    /**
     * @dev Returns the downcasted int128 from int256, reverting on
     * overflow (when the input is less than smallest int128 or
     * greater than largest int128).
     *
     * Counterpart to Solidity's `int128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     *
     * _Available since v3.1._
     */
    function toInt128(int256 value) internal pure returns (int128 downcasted) {
        downcasted = int128(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 128 bits");
    }

    /**
     * @dev Returns the downcasted int120 from int256, reverting on
     * overflow (when the input is less than smallest int120 or
     * greater than largest int120).
     *
     * Counterpart to Solidity's `int120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     *
     * _Available since v4.7._
     */
    function toInt120(int256 value) internal pure returns (int120 downcasted) {
        downcasted = int120(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 120 bits");
    }

    /**
     * @dev Returns the downcasted int112 from int256, reverting on
     * overflow (when the input is less than smallest int112 or
     * greater than largest int112).
     *
     * Counterpart to Solidity's `int112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     *
     * _Available since v4.7._
     */
    function toInt112(int256 value) internal pure returns (int112 downcasted) {
        downcasted = int112(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 112 bits");
    }

    /**
     * @dev Returns the downcasted int104 from int256, reverting on
     * overflow (when the input is less than smallest int104 or
     * greater than largest int104).
     *
     * Counterpart to Solidity's `int104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     *
     * _Available since v4.7._
     */
    function toInt104(int256 value) internal pure returns (int104 downcasted) {
        downcasted = int104(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 104 bits");
    }

    /**
     * @dev Returns the downcasted int96 from int256, reverting on
     * overflow (when the input is less than smallest int96 or
     * greater than largest int96).
     *
     * Counterpart to Solidity's `int96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     *
     * _Available since v4.7._
     */
    function toInt96(int256 value) internal pure returns (int96 downcasted) {
        downcasted = int96(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 96 bits");
    }

    /**
     * @dev Returns the downcasted int88 from int256, reverting on
     * overflow (when the input is less than smallest int88 or
     * greater than largest int88).
     *
     * Counterpart to Solidity's `int88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     *
     * _Available since v4.7._
     */
    function toInt88(int256 value) internal pure returns (int88 downcasted) {
        downcasted = int88(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 88 bits");
    }

    /**
     * @dev Returns the downcasted int80 from int256, reverting on
     * overflow (when the input is less than smallest int80 or
     * greater than largest int80).
     *
     * Counterpart to Solidity's `int80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     *
     * _Available since v4.7._
     */
    function toInt80(int256 value) internal pure returns (int80 downcasted) {
        downcasted = int80(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 80 bits");
    }

    /**
     * @dev Returns the downcasted int72 from int256, reverting on
     * overflow (when the input is less than smallest int72 or
     * greater than largest int72).
     *
     * Counterpart to Solidity's `int72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     *
     * _Available since v4.7._
     */
    function toInt72(int256 value) internal pure returns (int72 downcasted) {
        downcasted = int72(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 72 bits");
    }

    /**
     * @dev Returns the downcasted int64 from int256, reverting on
     * overflow (when the input is less than smallest int64 or
     * greater than largest int64).
     *
     * Counterpart to Solidity's `int64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     *
     * _Available since v3.1._
     */
    function toInt64(int256 value) internal pure returns (int64 downcasted) {
        downcasted = int64(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 64 bits");
    }

    /**
     * @dev Returns the downcasted int56 from int256, reverting on
     * overflow (when the input is less than smallest int56 or
     * greater than largest int56).
     *
     * Counterpart to Solidity's `int56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     *
     * _Available since v4.7._
     */
    function toInt56(int256 value) internal pure returns (int56 downcasted) {
        downcasted = int56(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 56 bits");
    }

    /**
     * @dev Returns the downcasted int48 from int256, reverting on
     * overflow (when the input is less than smallest int48 or
     * greater than largest int48).
     *
     * Counterpart to Solidity's `int48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     *
     * _Available since v4.7._
     */
    function toInt48(int256 value) internal pure returns (int48 downcasted) {
        downcasted = int48(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 48 bits");
    }

    /**
     * @dev Returns the downcasted int40 from int256, reverting on
     * overflow (when the input is less than smallest int40 or
     * greater than largest int40).
     *
     * Counterpart to Solidity's `int40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     *
     * _Available since v4.7._
     */
    function toInt40(int256 value) internal pure returns (int40 downcasted) {
        downcasted = int40(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 40 bits");
    }

    /**
     * @dev Returns the downcasted int32 from int256, reverting on
     * overflow (when the input is less than smallest int32 or
     * greater than largest int32).
     *
     * Counterpart to Solidity's `int32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     *
     * _Available since v3.1._
     */
    function toInt32(int256 value) internal pure returns (int32 downcasted) {
        downcasted = int32(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 32 bits");
    }

    /**
     * @dev Returns the downcasted int24 from int256, reverting on
     * overflow (when the input is less than smallest int24 or
     * greater than largest int24).
     *
     * Counterpart to Solidity's `int24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     *
     * _Available since v4.7._
     */
    function toInt24(int256 value) internal pure returns (int24 downcasted) {
        downcasted = int24(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 24 bits");
    }

    /**
     * @dev Returns the downcasted int16 from int256, reverting on
     * overflow (when the input is less than smallest int16 or
     * greater than largest int16).
     *
     * Counterpart to Solidity's `int16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     *
     * _Available since v3.1._
     */
    function toInt16(int256 value) internal pure returns (int16 downcasted) {
        downcasted = int16(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 16 bits");
    }

    /**
     * @dev Returns the downcasted int8 from int256, reverting on
     * overflow (when the input is less than smallest int8 or
     * greater than largest int8).
     *
     * Counterpart to Solidity's `int8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     *
     * _Available since v3.1._
     */
    function toInt8(int256 value) internal pure returns (int8 downcasted) {
        downcasted = int8(value);
        require(downcasted == value, "SafeCast: value doesn't fit in 8 bits");
    }

    /**
     * @dev Converts an unsigned uint256 into a signed int256.
     *
     * Requirements:
     *
     * - input must be less than or equal to maxInt256.
     *
     * _Available since v3.0._
     */
    function toInt256(uint256 value) internal pure returns (int256) {
        // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
        require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256");
        return int256(value);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/ShortStrings.sol)

pragma solidity ^0.8.8;

import "./StorageSlot.sol";

// | string  | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA   |
// | length  | 0x                                                              BB |
type ShortString is bytes32;

/**
 * @dev This library provides functions to convert short memory strings
 * into a `ShortString` type that can be used as an immutable variable.
 *
 * Strings of arbitrary length can be optimized using this library if
 * they are short enough (up to 31 bytes) by packing them with their
 * length (1 byte) in a single EVM word (32 bytes). Additionally, a
 * fallback mechanism can be used for every other case.
 *
 * Usage example:
 *
 * ```solidity
 * contract Named {
 *     using ShortStrings for *;
 *
 *     ShortString private immutable _name;
 *     string private _nameFallback;
 *
 *     constructor(string memory contractName) {
 *         _name = contractName.toShortStringWithFallback(_nameFallback);
 *     }
 *
 *     function name() external view returns (string memory) {
 *         return _name.toStringWithFallback(_nameFallback);
 *     }
 * }
 * ```
 */
library ShortStrings {
    // Used as an identifier for strings longer than 31 bytes.
    bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;

    error StringTooLong(string str);
    error InvalidShortString();

    /**
     * @dev Encode a string of at most 31 chars into a `ShortString`.
     *
     * This will trigger a `StringTooLong` error is the input string is too long.
     */
    function toShortString(string memory str) internal pure returns (ShortString) {
        bytes memory bstr = bytes(str);
        if (bstr.length > 31) {
            revert StringTooLong(str);
        }
        return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
    }

    /**
     * @dev Decode a `ShortString` back to a "normal" string.
     */
    function toString(ShortString sstr) internal pure returns (string memory) {
        uint256 len = byteLength(sstr);
        // using `new string(len)` would work locally but is not memory safe.
        string memory str = new string(32);
        /// @solidity memory-safe-assembly
        assembly {
            mstore(str, len)
            mstore(add(str, 0x20), sstr)
        }
        return str;
    }

    /**
     * @dev Return the length of a `ShortString`.
     */
    function byteLength(ShortString sstr) internal pure returns (uint256) {
        uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
        if (result > 31) {
            revert InvalidShortString();
        }
        return result;
    }

    /**
     * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.
     */
    function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
        if (bytes(value).length < 32) {
            return toShortString(value);
        } else {
            StorageSlot.getStringSlot(store).value = value;
            return ShortString.wrap(_FALLBACK_SENTINEL);
        }
    }

    /**
     * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     */
    function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return toString(value);
        } else {
            return store;
        }
    }

    /**
     * @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     *
     * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of
     * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.
     */
    function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return byteLength(value);
        } else {
            return bytes(store).length;
        }
    }
}

// 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 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
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";
import "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

{
  "evmVersion": "paris",
  "optimizer": {
    "enabled": true,
    "runs": 850,
    "details": {
      "yul": true
    }
  },
  "viaIR": true,
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AlreadyInitialized","type":"error"},{"inputs":[],"name":"BothAddressesAreContracts","type":"error"},{"inputs":[],"name":"ERC20ApproveFromZeroAddress","type":"error"},{"inputs":[],"name":"ERC20ApproveToZeroAddress","type":"error"},{"inputs":[],"name":"ERC20DecreasedAllowanceBelowZero","type":"error"},{"inputs":[],"name":"ERC20MintToZeroAddress","type":"error"},{"inputs":[],"name":"ERC20PermitExpired","type":"error"},{"inputs":[],"name":"ERC20PermitInvalidSignature","type":"error"},{"inputs":[],"name":"ERC20TransferExceedsAllowance","type":"error"},{"inputs":[],"name":"ERC20TransferExceedsBalance","type":"error"},{"inputs":[],"name":"ERC20TransferFromZeroAddress","type":"error"},{"inputs":[],"name":"ERC20TransferToZeroAddress","type":"error"},{"inputs":[],"name":"ERC20VotesBrokenClock","type":"error"},{"inputs":[],"name":"ERC20VotesFutureLookup","type":"error"},{"inputs":[],"name":"ERC20VotesInvalidNonce","type":"error"},{"inputs":[],"name":"ERC20VotesSignatureExpired","type":"error"},{"inputs":[],"name":"ERC20VotesSupplyOverflow","type":"error"},{"inputs":[],"name":"InvalidArrayLength","type":"error"},{"inputs":[],"name":"InvalidBuyTaxReceiver","type":"error"},{"inputs":[],"name":"InvalidShortString","type":"error"},{"inputs":[],"name":"LZAPPInvalidAdapterParams","type":"error"},{"inputs":[],"name":"LZAPPInvalidDestinationChain","type":"error"},{"inputs":[],"name":"LZAPPInvalidEndpointCaller","type":"error"},{"inputs":[],"name":"LZAPPInvalidGasLimit","type":"error"},{"inputs":[],"name":"LZAPPInvalidMinGas","type":"error"},{"inputs":[],"name":"LZAPPInvalidMinGasLimit","type":"error"},{"inputs":[],"name":"LZAPPInvalidPayload","type":"error"},{"inputs":[],"name":"LZAPPInvalidPayloadSize","type":"error"},{"inputs":[],"name":"LZAPPInvalidSourceSendingContract","type":"error"},{"inputs":[],"name":"LZAPPNoTrustedPathRecord","type":"error"},{"inputs":[],"name":"MaxTaxExceeded","type":"error"},{"inputs":[],"name":"MigratorSetOnInvalidChain","type":"error"},{"inputs":[],"name":"NewOwnerIsZeroAddress","type":"error"},{"inputs":[],"name":"OFTCoreAdapterParamsNotAllowed","type":"error"},{"inputs":[],"name":"OFTCoreAmountSDOverflow","type":"error"},{"inputs":[],"name":"OFTCoreAmountZero","type":"error"},{"inputs":[],"name":"OFTCoreCallerMustBeOFTCore","type":"error"},{"inputs":[],"name":"OFTCoreInvalidPayload","type":"error"},{"inputs":[],"name":"OFTCoreUnknownPacketType","type":"error"},{"inputs":[{"internalType":"uint8","name":"sharedDecimals","type":"uint8"},{"internalType":"uint8","name":"decimals","type":"uint8"}],"name":"OFTSharedDecimalsMustBeLessThanOrEqualToDecimals","type":"error"},{"inputs":[],"name":"OnlyMigrator","type":"error"},{"inputs":[],"name":"OnlyOwner","type":"error"},{"inputs":[],"name":"SafeERC20ERC20OperationFailed","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","type":"error"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"TransferBlacklisted","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"indexed":false,"internalType":"uint64","name":"_nonce","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"_hash","type":"bytes32"}],"name":"CallOFTReceivedSuccess","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"address","name":"fromDelegate","type":"address"},{"indexed":true,"internalType":"address","name":"toDelegate","type":"address"}],"name":"DelegateChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"previousBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"DelegateVotesChanged","type":"event"},{"anonymous":false,"inputs":[],"name":"EIP712DomainChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"indexed":false,"internalType":"uint64","name":"_nonce","type":"uint64"},{"indexed":false,"internalType":"bytes","name":"_payload","type":"bytes"},{"indexed":false,"internalType":"bytes","name":"_reason","type":"bytes"}],"name":"MessageFailed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_address","type":"address"}],"name":"NonContractAddress","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"ReceiveFromChain","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"indexed":false,"internalType":"uint64","name":"_nonce","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"_payloadHash","type":"bytes32"}],"name":"RetryMessageSuccess","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"bytes32","name":"_toAddress","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"SendToChain","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"buyTaxReceiver","type":"address"}],"name":"SetBuyTaxReceiver","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"isAntiMEV","type":"bool"}],"name":"SetIsAntiMEV","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"isBlacklisting","type":"bool"}],"name":"SetIsTransferBlacklisting","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"indexed":false,"internalType":"uint16","name":"_type","type":"uint16"},{"indexed":false,"internalType":"uint256","name":"_minDstGas","type":"uint256"}],"name":"SetMinDstGas","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"precrime","type":"address"}],"name":"SetPrecrime","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"buyTax","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"sellTax","type":"uint256"},{"indexed":false,"internalType":"bool","name":"isTaxing","type":"bool"}],"name":"SetTax","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"whitelist","type":"address"},{"indexed":false,"internalType":"bool","name":"isWhitelisted","type":"bool"}],"name":"SetTaxWhitelist","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"taxableContract","type":"address"},{"indexed":false,"internalType":"bool","name":"isTaxable","type":"bool"}],"name":"SetTaxableContract","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"blacklist","type":"address"},{"indexed":false,"internalType":"bool","name":"isBlacklisted","type":"bool"}],"name":"SetTransferBlacklist","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"_remoteChainId","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"_path","type":"bytes"}],"name":"SetTrustedRemote","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"_remoteChainId","type":"uint16"},{"indexed":false,"internalType":"bytes","name":"_remoteAddress","type":"bytes"}],"name":"SetTrustedRemoteAddress","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"_useCustomAdapterParams","type":"bool"}],"name":"SetUseCustomAdapterParams","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"CLOCK_MODE","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_PAYLOAD_SIZE_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"NO_EXTRA_GAS","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PT_SEND","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PT_SEND_AND_CALL","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"burnFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"internalType":"uint64","name":"_nonce","type":"uint64"},{"internalType":"bytes32","name":"_from","type":"bytes32"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes","name":"_payload","type":"bytes"},{"internalType":"uint256","name":"_gasForCall","type":"uint256"}],"name":"callOnOFTReceived","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint32","name":"pos","type":"uint32"}],"name":"checkpoints","outputs":[{"components":[{"internalType":"uint32","name":"fromBlock","type":"uint32"},{"internalType":"uint224","name":"votes","type":"uint224"}],"internalType":"struct ERC20Votes.Checkpoint","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"circulatingSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"clock","outputs":[{"internalType":"uint48","name":"","type":"uint48"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"},{"internalType":"bytes","name":"","type":"bytes"},{"internalType":"uint64","name":"","type":"uint64"}],"name":"creditedPackets","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"}],"name":"delegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"delegatee","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"expiry","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"delegateBySig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"delegates","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"eip712Domain","outputs":[{"internalType":"bytes1","name":"fields","type":"bytes1"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"version","type":"string"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"verifyingContract","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"extensions","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"bytes32","name":"_toAddress","type":"bytes32"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes","name":"_payload","type":"bytes"},{"internalType":"uint64","name":"_dstGasForCall","type":"uint64"},{"internalType":"bool","name":"_useZro","type":"bool"},{"internalType":"bytes","name":"_adapterParams","type":"bytes"}],"name":"estimateSendAndCallFee","outputs":[{"internalType":"uint256","name":"nativeFee","type":"uint256"},{"internalType":"uint256","name":"zroFee","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"bytes32","name":"_toAddress","type":"bytes32"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bool","name":"_useZro","type":"bool"},{"internalType":"bytes","name":"_adapterParams","type":"bytes"}],"name":"estimateSendFee","outputs":[{"internalType":"uint256","name":"nativeFee","type":"uint256"},{"internalType":"uint256","name":"zroFee","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"},{"internalType":"bytes","name":"","type":"bytes"},{"internalType":"uint64","name":"","type":"uint64"}],"name":"failedMessages","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"}],"name":"forceResumeReceive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_version","type":"uint16"},{"internalType":"uint16","name":"_chainId","type":"uint16"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"_configType","type":"uint256"}],"name":"getConfig","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"timepoint","type":"uint256"}],"name":"getPastTotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"timepoint","type":"uint256"}],"name":"getPastVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_remoteChainId","type":"uint16"}],"name":"getTrustedRemoteAddress","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getVotes","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_lzEndpoint","type":"address"},{"internalType":"address","name":"_buyTaxReceiver","type":"address"},{"internalType":"address","name":"_antiMEVStrategy","type":"address"},{"internalType":"address","name":"_migrator","type":"address"},{"internalType":"uint256","name":"_migratorMintSupply","type":"uint256"},{"internalType":"uint256","name":"_buyTax","type":"uint256"},{"internalType":"uint256","name":"_sellTax","type":"uint256"},{"internalType":"bool","name":"_isTaxingEnabled","type":"bool"},{"internalType":"bool","name":"_isAntiMEV","type":"bool"},{"internalType":"bool","name":"_isTransferBlacklisting","type":"bool"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"}],"name":"isTrustedRemote","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lzEndpoint","outputs":[{"internalType":"contract ILayerZeroEndpoint","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"internalType":"uint64","name":"_nonce","type":"uint64"},{"internalType":"bytes","name":"_payload","type":"bytes"}],"name":"lzReceive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"},{"internalType":"uint16","name":"","type":"uint16"}],"name":"minDstGasLookup","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"internalType":"uint64","name":"_nonce","type":"uint64"},{"internalType":"bytes","name":"_payload","type":"bytes"}],"name":"nonblockingLzReceive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"numCheckpoints","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"}],"name":"payloadSizeLimitLookup","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"precrime","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"recoverToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_srcChainId","type":"uint16"},{"internalType":"bytes","name":"_srcAddress","type":"bytes"},{"internalType":"uint64","name":"_nonce","type":"uint64"},{"internalType":"bytes","name":"_payload","type":"bytes"}],"name":"retryMessage","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"bytes32","name":"_toAddress","type":"bytes32"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes","name":"_payload","type":"bytes"},{"internalType":"uint64","name":"_dstGasForCall","type":"uint64"},{"components":[{"internalType":"address payable","name":"refundAddress","type":"address"},{"internalType":"address","name":"zroPaymentAddress","type":"address"},{"internalType":"bytes","name":"adapterParams","type":"bytes"}],"internalType":"struct ICommonOFT.LzCallParams","name":"_callParams","type":"tuple"}],"name":"sendAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"bytes32","name":"_toAddress","type":"bytes32"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"components":[{"internalType":"address payable","name":"refundAddress","type":"address"},{"internalType":"address","name":"zroPaymentAddress","type":"address"},{"internalType":"bytes","name":"adapterParams","type":"bytes"}],"internalType":"struct ICommonOFT.LzCallParams","name":"_callParams","type":"tuple"}],"name":"sendFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"contract IAntiMevStrategy","name":"_antiMEVStrategy","type":"address"}],"name":"setAntiMevStrategy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_buyTaxReceiver","type":"address"}],"name":"setBuyTaxReceiver","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_version","type":"uint16"},{"internalType":"uint16","name":"_chainId","type":"uint16"},{"internalType":"uint256","name":"_configType","type":"uint256"},{"internalType":"bytes","name":"_config","type":"bytes"}],"name":"setConfig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isAntiMEV","type":"bool"}],"name":"setIsAntiMEV","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isBlacklisting","type":"bool"}],"name":"setIsTransferBlacklisting","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"uint16","name":"_packetType","type":"uint16"},{"internalType":"uint256","name":"_minGas","type":"uint256"}],"name":"setMinDstGas","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_dstChainId","type":"uint16"},{"internalType":"uint256","name":"_size","type":"uint256"}],"name":"setPayloadSizeLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_precrime","type":"address"}],"name":"setPrecrime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_version","type":"uint16"}],"name":"setReceiveVersion","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_version","type":"uint16"}],"name":"setSendVersion","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_buyTax","type":"uint256"},{"internalType":"uint256","name":"_sellTax","type":"uint256"},{"internalType":"bool","name":"_isTaxingEnabled","type":"bool"}],"name":"setTax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_whitelist","type":"address"},{"internalType":"bool","name":"_isWhitelisted","type":"bool"}],"name":"setTaxWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_taxableContract","type":"address"},{"internalType":"bool","name":"_isTaxable","type":"bool"}],"name":"setTaxableContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_blacklist","type":"address"},{"internalType":"bool","name":"_isBlacklisted","type":"bool"}],"name":"setTransferBlacklist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_remoteChainId","type":"uint16"},{"internalType":"bytes","name":"_path","type":"bytes"}],"name":"setTrustedRemote","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_remoteChainId","type":"uint16"},{"internalType":"bytes","name":"_remoteAddress","type":"bytes"}],"name":"setTrustedRemoteAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_useCustomAdapterParams","type":"bool"}],"name":"setUseCustomAdapterParams","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"sharedDecimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"","type":"uint16"}],"name":"trustedRemoteLookup","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"useCustomAdapterParams","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

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