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

import { IRateProvider } from "src/interfaces/IRateProvider.sol";
import { AccessControl } from "@openzeppelin/contracts/access/AccessControl.sol";

interface IAccountantWithRateProviders {
    function decimals() external view returns (uint8);
    function getRate() external view returns (uint256);
    function getRateSafe() external view returns (uint256);
}

/**
 * @title AccountantRateProviderWrapper
 * @notice Wraps an AccountantWithRateProviders contract and converts its rate decimals to 18
 * @dev This contract takes rates from an existing AccountantWithRateProviders and normalizes them to 18 decimals
 */
contract AccountantRateProviderWrapper is IRateProvider, AccessControl {
    
    // ========================================= CONSTANTS =========================================
    
    bytes32 public constant GOVERNANCE_ROLE = keccak256("GOVERNANCE_ROLE");
    
    // ========================================= STATE VARIABLES =========================================
    
    /**
     * @notice The AccountantWithRateProviders contract we're wrapping
     */
    IAccountantWithRateProviders public accountant;
    
    /**
     * @notice The original decimals of the accountant
     */
    uint8 public accountantDecimals;
    
    /**
     * @notice Conversion factor to convert from accountant decimals to 18 decimals
     * @dev This is 10^(18 - accountantDecimals). If accountantDecimals == 18, this is 1
     */
    uint256 public conversionFactor;
    
    // ========================================= EVENTS =========================================
    
    event AccountantUpdated(address indexed oldAccountant, address indexed newAccountant, uint8 oldDecimals, uint8 newDecimals, uint256 oldConversionFactor, uint256 newConversionFactor);
    
    // ========================================= ERRORS =========================================
    
    error AccountantDecimalsTooLarge();
    error InvalidAccountantAddress();
    
    // ========================================= CONSTRUCTOR =========================================
    
    constructor(address _accountant, address _governance) {
        _setRoleAdmin(GOVERNANCE_ROLE, GOVERNANCE_ROLE);
        _grantRole(GOVERNANCE_ROLE, _governance);
        
        _setAccountant(_accountant);
    }
    
    // ========================================= GOVERNANCE FUNCTIONS =========================================
    
    /**
     * @notice Update the accountant contract address
     * @dev Only callable by governance role
     * @param _newAccountant Address of the new AccountantWithRateProviders contract
     */
    function setAccountant(address _newAccountant) external onlyRole(GOVERNANCE_ROLE) {
        _setAccountant(_newAccountant);
    }
    
    // ========================================= VIEW FUNCTIONS =========================================
    
    /**
     * @notice Returns the number of decimals this rate provider uses (always 18)
     */
    function decimals() external pure returns (uint8) {
        return 18;
    }
    
    /**
     * @notice Get the rate from the accountant, converted to 18 decimals
     * @return rate The rate with 18 decimal precision
     */
    function getRate() external view returns (uint256 rate) {
        uint256 accountantRate = accountant.getRate();
        rate = accountantRate * conversionFactor;
    }
    
    /**
     * @notice Get the rate from the accountant safely, converted to 18 decimals
     * @dev Reverts if the underlying accountant is paused
     * @return rate The rate with 18 decimal precision
     */
    function getRateSafe() external view returns (uint256 rate) {
        uint256 accountantRate = accountant.getRateSafe();
        rate = accountantRate * conversionFactor;
    }
    
    /**
     * @notice Get the original rate from the accountant without decimal conversion
     * @return rate The original rate from the accountant
     */
    function getOriginalRate() external view returns (uint256 rate) {
        return accountant.getRate();
    }
    
    /**
     * @notice Get the original rate from the accountant safely without decimal conversion
     * @return rate The original rate from the accountant
     */
    function getOriginalRateSafe() external view returns (uint256 rate) {
        return accountant.getRateSafe();
    }
    
    // ========================================= INTERNAL FUNCTIONS =========================================
    
    /**
     * @notice Internal function to set the accountant and update related state
     * @param _newAccountant Address of the new AccountantWithRateProviders contract
     */
    function _setAccountant(address _newAccountant) internal {
        if (_newAccountant == address(0)) revert InvalidAccountantAddress();
        
        // Store old values for event
        address oldAccountant = address(accountant);
        uint8 oldDecimals = accountantDecimals;
        uint256 oldConversionFactor = conversionFactor;
        
        // Set new accountant
        accountant = IAccountantWithRateProviders(_newAccountant);
        
        // Get new decimals and validate
        uint8 newDecimals = accountant.decimals();
        if (newDecimals > 18) revert AccountantDecimalsTooLarge();
        
        // Update state
        accountantDecimals = newDecimals;
        conversionFactor = 10 ** (18 - newDecimals);
        
        emit AccountantUpdated(oldAccountant, _newAccountant, oldDecimals, newDecimals, oldConversionFactor, conversionFactor);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "./IAccessControl.sol";
import {Context} from "../utils/Context.sol";
import {ERC165} from "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    mapping(bytes32 role => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual returns (bool) {
        return _roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        if (!hasRole(role, account)) {
            _roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        if (hasRole(role, account)) {
            _roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/IAccessControl.sol)

pragma solidity ^0.8.20;

/**
 * @dev External interface of AccessControl declared to support ERC-165 detection.
 */
interface IAccessControl {
    /**
     * @dev The `account` is missing a role.
     */
    error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);

    /**
     * @dev The caller of a function is not the expected one.
     *
     * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
     */
    error AccessControlBadConfirmation();

    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call. This account bears the admin role (for the granted role).
     * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     */
    function renounceRole(bytes32 role, address callerConfirmation) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

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

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

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC-165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * 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[ERC 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: GPL-3.0-or-later
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

pragma solidity ^0.8.0;

interface IRateProvider {
    function getRate() external view returns (uint256);
}

{
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "appendCBOR": true,
    "bytecodeHash": "ipfs",
    "useLiteralContent": false
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "remappings": [
    "@solmate/=lib/solmate/src/",
    "@forge-std/=lib/forge-std/src/",
    "forge-std/=lib/forge-std/src/",
    "@ds-test/=lib/forge-std/lib/ds-test/src/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "@ion-protocol/=lib/ion-protocol/src/",
    "@layerzerolabs/=node_modules/@layerzerolabs/",
    "@axelar-network/=node_modules/@axelar-network/",
    "@balancer-labs/v2-interfaces/=lib/ion-protocol/lib/balancer-v2-monorepo/pkg/interfaces/",
    "@balancer-labs/v2-pool-stable/=lib/ion-protocol/lib/balancer-v2-monorepo/pkg/pool-stable/",
    "@chainlink/=node_modules/@chainlink/",
    "@chainlink/contracts/=lib/ion-protocol/lib/chainlink/contracts/",
    "@eth-optimism/=node_modules/@eth-optimism/",
    "@openzeppelin/contracts-upgradeable/=lib/ion-protocol/lib/openzeppelin-contracts-upgradeable/contracts/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "@uniswap/v3-core/=lib/ion-protocol/lib/v3-core/",
    "@uniswap/v3-periphery/=lib/ion-protocol/lib/v3-periphery/",
    "balancer-v2-monorepo/=lib/ion-protocol/lib/",
    "chainlink/=lib/ion-protocol/lib/chainlink/",
    "createx/=lib/createx/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-safe/=lib/ion-protocol/lib/forge-safe/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/src/",
    "hardhat-deploy/=node_modules/hardhat-deploy/",
    "ion-protocol/=lib/ion-protocol/",
    "openzeppelin-contracts-upgradeable/=lib/ion-protocol/lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "openzeppelin/=lib/createx/lib/openzeppelin-contracts/contracts/",
    "pendle-core-v2-public/=lib/ion-protocol/lib/pendle-core-v2-public/contracts/",
    "solady/=lib/ion-protocol/lib/solady/",
    "solarray/=lib/ion-protocol/lib/solarray/src/",
    "solidity-bytes-utils/=node_modules/solidity-bytes-utils/",
    "solidity-stringutils/=lib/ion-protocol/lib/forge-safe/lib/surl/lib/solidity-stringutils/",
    "solmate/=lib/solmate/src/",
    "surl/=lib/ion-protocol/lib/forge-safe/lib/surl/",
    "v3-core/=lib/ion-protocol/lib/v3-core/",
    "v3-periphery/=lib/v3-periphery/contracts/"
  ],
  "viaIR": false
}

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IAccountantWithRateProviders","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"accountantDecimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"conversionFactor","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getOriginalRate","outputs":[{"internalType":"uint256","name":"rate","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getOriginalRateSafe","outputs":[{"internalType":"uint256","name":"rate","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getRate","outputs":[{"internalType":"uint256","name":"rate","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getRateSafe","outputs":[{"internalType":"uint256","name":"rate","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"callerConfirmation","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newAccountant","type":"address"}],"name":"setAccountant","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

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00000000000000000000000078e3ac5bf48dcaf1835e7f9861542c0d43d0b03e0000000000000000000000006335ee3e052c7a09048800376c8cbfe9cc5fb7a8

-----Decoded View---------------
Arg [0] : _accountant (address): 0x78E3Ac5Bf48dcAF1835e7F9861542c0D43D0B03E
Arg [1] : _governance (address): 0x6335ee3e052C7A09048800376C8CbFE9cc5fB7a8

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000078e3ac5bf48dcaf1835e7f9861542c0d43d0b03e
Arg [1] : 0000000000000000000000006335ee3e052c7a09048800376c8cbfe9cc5fb7a8