{
  "language": "Solidity",
  "sources": {
    "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface AggregatorV3Interface {\n  function decimals() external view returns (uint8);\n\n  function description() external view returns (string memory);\n\n  function version() external view returns (uint256);\n\n  function getRoundData(uint80 _roundId)\n    external\n    view\n    returns (\n      uint80 roundId,\n      int256 answer,\n      uint256 startedAt,\n      uint256 updatedAt,\n      uint80 answeredInRound\n    );\n\n  function latestRoundData()\n    external\n    view\n    returns (\n      uint80 roundId,\n      int256 answer,\n      uint256 startedAt,\n      uint256 updatedAt,\n      uint80 answeredInRound\n    );\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./OwnableUpgradeable.sol\";\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module which provides access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership} and {acceptOwnership}.\n *\n * This module is used through inheritance. It will make available all functions\n * from parent (Ownable).\n */\nabstract contract Ownable2StepUpgradeable is Initializable, OwnableUpgradeable {\n    address private _pendingOwner;\n\n    event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);\n\n    function __Ownable2Step_init() internal onlyInitializing {\n        __Ownable_init_unchained();\n    }\n\n    function __Ownable2Step_init_unchained() internal onlyInitializing {\n    }\n    /**\n     * @dev Returns the address of the pending owner.\n     */\n    function pendingOwner() public view virtual returns (address) {\n        return _pendingOwner;\n    }\n\n    /**\n     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual override onlyOwner {\n        _pendingOwner = newOwner;\n        emit OwnershipTransferStarted(owner(), newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual override {\n        delete _pendingOwner;\n        super._transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev The new owner accepts the ownership transfer.\n     */\n    function acceptOwnership() public virtual {\n        address sender = _msgSender();\n        require(pendingOwner() == sender, \"Ownable2Step: caller is not the new owner\");\n        _transferOwnership(sender);\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    function __Ownable_init() internal onlyInitializing {\n        __Ownable_init_unchained();\n    }\n\n    function __Ownable_init_unchained() internal onlyInitializing {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby disabling any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```solidity\n * contract MyToken is ERC20Upgradeable {\n *     function initialize() initializer public {\n *         __ERC20_init(\"MyToken\", \"MTK\");\n *     }\n * }\n *\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n *     function initializeV2() reinitializer(2) public {\n *         __ERC20Permit_init(\"MyToken\");\n *     }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n *     _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n    /**\n     * @dev Indicates that the contract has been initialized.\n     * @custom:oz-retyped-from bool\n     */\n    uint8 private _initialized;\n\n    /**\n     * @dev Indicates that the contract is in the process of being initialized.\n     */\n    bool private _initializing;\n\n    /**\n     * @dev Triggered when the contract has been initialized or reinitialized.\n     */\n    event Initialized(uint8 version);\n\n    /**\n     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n     * `onlyInitializing` functions can be used to initialize parent contracts.\n     *\n     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n     * constructor.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier initializer() {\n        bool isTopLevelCall = !_initializing;\n        require(\n            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n            \"Initializable: contract is already initialized\"\n        );\n        _initialized = 1;\n        if (isTopLevelCall) {\n            _initializing = true;\n        }\n        _;\n        if (isTopLevelCall) {\n            _initializing = false;\n            emit Initialized(1);\n        }\n    }\n\n    /**\n     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n     * used to initialize parent contracts.\n     *\n     * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n     * are added through upgrades and that require initialization.\n     *\n     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n     * cannot be nested. If one is invoked in the context of another, execution will revert.\n     *\n     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n     * a contract, executing them in the right order is up to the developer or operator.\n     *\n     * WARNING: setting the version to 255 will prevent any future reinitialization.\n     *\n     * Emits an {Initialized} event.\n     */\n    modifier reinitializer(uint8 version) {\n        require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n        _initialized = version;\n        _initializing = true;\n        _;\n        _initializing = false;\n        emit Initialized(version);\n    }\n\n    /**\n     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n     * {initializer} and {reinitializer} modifiers, directly or indirectly.\n     */\n    modifier onlyInitializing() {\n        require(_initializing, \"Initializable: contract is not initializing\");\n        _;\n    }\n\n    /**\n     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n     * through proxies.\n     *\n     * Emits an {Initialized} event the first time it is successfully executed.\n     */\n    function _disableInitializers() internal virtual {\n        require(!_initializing, \"Initializable: contract is initializing\");\n        if (_initialized != type(uint8).max) {\n            _initialized = type(uint8).max;\n            emit Initialized(type(uint8).max);\n        }\n    }\n\n    /**\n     * @dev Returns the highest version that has been initialized. See {reinitializer}.\n     */\n    function _getInitializedVersion() internal view returns (uint8) {\n        return _initialized;\n    }\n\n    /**\n     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n     */\n    function _isInitializing() internal view returns (bool) {\n        return _initializing;\n    }\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module which allows children to implement an emergency stop\n * mechanism that can be triggered by an authorized account.\n *\n * This module is used through inheritance. It will make available the\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\n * the functions of your contract. Note that they will not be pausable by\n * simply including this module, only once the modifiers are put in place.\n */\nabstract contract PausableUpgradeable is Initializable, ContextUpgradeable {\n    /**\n     * @dev Emitted when the pause is triggered by `account`.\n     */\n    event Paused(address account);\n\n    /**\n     * @dev Emitted when the pause is lifted by `account`.\n     */\n    event Unpaused(address account);\n\n    bool private _paused;\n\n    /**\n     * @dev Initializes the contract in unpaused state.\n     */\n    function __Pausable_init() internal onlyInitializing {\n        __Pausable_init_unchained();\n    }\n\n    function __Pausable_init_unchained() internal onlyInitializing {\n        _paused = false;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is not paused.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    modifier whenNotPaused() {\n        _requireNotPaused();\n        _;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is paused.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    modifier whenPaused() {\n        _requirePaused();\n        _;\n    }\n\n    /**\n     * @dev Returns true if the contract is paused, and false otherwise.\n     */\n    function paused() public view virtual returns (bool) {\n        return _paused;\n    }\n\n    /**\n     * @dev Throws if the contract is paused.\n     */\n    function _requireNotPaused() internal view virtual {\n        require(!paused(), \"Pausable: paused\");\n    }\n\n    /**\n     * @dev Throws if the contract is not paused.\n     */\n    function _requirePaused() internal view virtual {\n        require(paused(), \"Pausable: not paused\");\n    }\n\n    /**\n     * @dev Triggers stopped state.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    function _pause() internal virtual whenNotPaused {\n        _paused = true;\n        emit Paused(_msgSender());\n    }\n\n    /**\n     * @dev Returns to normal state.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    function _unpause() internal virtual whenPaused {\n        _paused = false;\n        emit Unpaused(_msgSender());\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     *\n     * Furthermore, `isContract` will also return true if the target contract within\n     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n     * which only has an effect at the end of a transaction.\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract ContextUpgradeable is Initializable {\n    function __Context_init() internal onlyInitializing {\n    }\n\n    function __Context_init_unchained() internal onlyInitializing {\n    }\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n\n    function _contextSuffixLength() internal view virtual returns (uint256) {\n        return 0;\n    }\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[50] private __gap;\n}\n"
    },
    "@openzeppelin/contracts/access/IAccessControl.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev External interface of AccessControl declared to support ERC165 detection.\n */\ninterface IAccessControl {\n    /**\n     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n     *\n     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n     * {RoleAdminChanged} not being emitted signaling this.\n     *\n     * _Available since v3.1._\n     */\n    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n    /**\n     * @dev Emitted when `account` is granted `role`.\n     *\n     * `sender` is the account that originated the contract call, an admin role\n     * bearer except when using {AccessControl-_setupRole}.\n     */\n    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n    /**\n     * @dev Emitted when `account` is revoked `role`.\n     *\n     * `sender` is the account that originated the contract call:\n     *   - if using `revokeRole`, it is the admin role bearer\n     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)\n     */\n    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n    /**\n     * @dev Returns `true` if `account` has been granted `role`.\n     */\n    function hasRole(bytes32 role, address account) external view returns (bool);\n\n    /**\n     * @dev Returns the admin role that controls `role`. See {grantRole} and\n     * {revokeRole}.\n     *\n     * To change a role's admin, use {AccessControl-_setRoleAdmin}.\n     */\n    function getRoleAdmin(bytes32 role) external view returns (bytes32);\n\n    /**\n     * @dev Grants `role` to `account`.\n     *\n     * If `account` had not been already granted `role`, emits a {RoleGranted}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     */\n    function grantRole(bytes32 role, address account) external;\n\n    /**\n     * @dev Revokes `role` from `account`.\n     *\n     * If `account` had been granted `role`, emits a {RoleRevoked} event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     */\n    function revokeRole(bytes32 role, address account) external;\n\n    /**\n     * @dev Revokes `role` from the calling account.\n     *\n     * Roles are often managed via {grantRole} and {revokeRole}: this function's\n     * purpose is to provide a mechanism for accounts to lose their privileges\n     * if they are compromised (such as when a trusted device is misplaced).\n     *\n     * If the calling account had been granted `role`, emits a {RoleRevoked}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must be `account`.\n     */\n    function renounceRole(bytes32 role, address account) external;\n}\n"
    },
    "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n"
    },
    "@venusprotocol/governance-contracts/contracts/Governance/AccessControlledV8.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\nimport \"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol\";\n\nimport \"./IAccessControlManagerV8.sol\";\n\n/**\n * @title AccessControlledV8\n * @author Venus\n * @notice This contract is helper between access control manager and actual contract. This contract further inherited by other contract (using solidity 0.8.13)\n * to integrate access controlled mechanism. It provides initialise methods and verifying access methods.\n */\nabstract contract AccessControlledV8 is Initializable, Ownable2StepUpgradeable {\n    /// @notice Access control manager contract\n    IAccessControlManagerV8 private _accessControlManager;\n\n    /**\n     * @dev This empty reserved space is put in place to allow future versions to add new\n     * variables without shifting down storage in the inheritance chain.\n     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n     */\n    uint256[49] private __gap;\n\n    /// @notice Emitted when access control manager contract address is changed\n    event NewAccessControlManager(address oldAccessControlManager, address newAccessControlManager);\n\n    /// @notice Thrown when the action is prohibited by AccessControlManager\n    error Unauthorized(address sender, address calledContract, string methodSignature);\n\n    function __AccessControlled_init(address accessControlManager_) internal onlyInitializing {\n        __Ownable2Step_init();\n        __AccessControlled_init_unchained(accessControlManager_);\n    }\n\n    function __AccessControlled_init_unchained(address accessControlManager_) internal onlyInitializing {\n        _setAccessControlManager(accessControlManager_);\n    }\n\n    /**\n     * @notice Sets the address of AccessControlManager\n     * @dev Admin function to set address of AccessControlManager\n     * @param accessControlManager_ The new address of the AccessControlManager\n     * @custom:event Emits NewAccessControlManager event\n     * @custom:access Only Governance\n     */\n    function setAccessControlManager(address accessControlManager_) external onlyOwner {\n        _setAccessControlManager(accessControlManager_);\n    }\n\n    /**\n     * @notice Returns the address of the access control manager contract\n     */\n    function accessControlManager() external view returns (IAccessControlManagerV8) {\n        return _accessControlManager;\n    }\n\n    /**\n     * @dev Internal function to set address of AccessControlManager\n     * @param accessControlManager_ The new address of the AccessControlManager\n     */\n    function _setAccessControlManager(address accessControlManager_) internal {\n        require(address(accessControlManager_) != address(0), \"invalid acess control manager address\");\n        address oldAccessControlManager = address(_accessControlManager);\n        _accessControlManager = IAccessControlManagerV8(accessControlManager_);\n        emit NewAccessControlManager(oldAccessControlManager, accessControlManager_);\n    }\n\n    /**\n     * @notice Reverts if the call is not allowed by AccessControlManager\n     * @param signature Method signature\n     */\n    function _checkAccessAllowed(string memory signature) internal view {\n        bool isAllowedToCall = _accessControlManager.isAllowedToCall(msg.sender, signature);\n\n        if (!isAllowedToCall) {\n            revert Unauthorized(msg.sender, address(this), signature);\n        }\n    }\n}\n"
    },
    "@venusprotocol/governance-contracts/contracts/Governance/IAccessControlManagerV8.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity ^0.8.25;\n\nimport \"@openzeppelin/contracts/access/IAccessControl.sol\";\n\n/**\n * @title IAccessControlManagerV8\n * @author Venus\n * @notice Interface implemented by the `AccessControlManagerV8` contract.\n */\ninterface IAccessControlManagerV8 is IAccessControl {\n    function giveCallPermission(address contractAddress, string calldata functionSig, address accountToPermit) external;\n\n    function revokeCallPermission(\n        address contractAddress,\n        string calldata functionSig,\n        address accountToRevoke\n    ) external;\n\n    function isAllowedToCall(address account, string calldata functionSig) external view returns (bool);\n\n    function hasPermission(\n        address account,\n        address contractAddress,\n        string calldata functionSig\n    ) external view returns (bool);\n}\n"
    },
    "@venusprotocol/solidity-utilities/contracts/validators.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\n/// @notice Thrown if the supplied address is a zero address where it is not allowed\nerror ZeroAddressNotAllowed();\n\n/// @notice Thrown if the supplied value is 0 where it is not allowed\nerror ZeroValueNotAllowed();\n\n/// @notice Checks if the provided address is nonzero, reverts otherwise\n/// @param address_ Address to check\n/// @custom:error ZeroAddressNotAllowed is thrown if the provided address is a zero address\nfunction ensureNonzeroAddress(address address_) pure {\n    if (address_ == address(0)) {\n        revert ZeroAddressNotAllowed();\n    }\n}\n\n/// @notice Checks if the provided value is nonzero, reverts otherwise\n/// @param value_ Value to check\n/// @custom:error ZeroValueNotAllowed is thrown if the provided value is 0\nfunction ensureNonzeroValue(uint256 value_) pure {\n    if (value_ == 0) {\n        revert ZeroValueNotAllowed();\n    }\n}\n"
    },
    "contracts/interfaces/IAccountant.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\ninterface IAccountant {\n    function getRateSafe() external view returns (uint256);\n}\n"
    },
    "contracts/interfaces/OracleInterface.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity ^0.8.25;\n\ninterface OracleInterface {\n    function getPrice(address asset) external view returns (uint256);\n}\n\ninterface ResilientOracleInterface is OracleInterface {\n    function updatePrice(address vToken) external;\n\n    function updateAssetPrice(address asset) external;\n\n    function getUnderlyingPrice(address vToken) external view returns (uint256);\n}\n\ninterface TwapInterface is OracleInterface {\n    function updateTwap(address asset) external returns (uint256);\n}\n\ninterface BoundValidatorInterface {\n    function validatePriceWithAnchorPrice(\n        address asset,\n        uint256 reporterPrice,\n        uint256 anchorPrice\n    ) external view returns (bool);\n}\n"
    },
    "contracts/interfaces/VBep20Interface.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity ^0.8.25;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\n\ninterface VBep20Interface is IERC20Metadata {\n    /**\n     * @notice Underlying asset for this VToken\n     */\n    function underlying() external view returns (address);\n}\n"
    },
    "contracts/oracles/ChainlinkOracle.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\nimport \"../interfaces/VBep20Interface.sol\";\nimport \"../interfaces/OracleInterface.sol\";\nimport \"@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol\";\nimport \"@venusprotocol/governance-contracts/contracts/Governance/AccessControlledV8.sol\";\n\n/**\n * @title ChainlinkOracle\n * @author Venus\n * @notice This oracle fetches prices of assets from the Chainlink oracle.\n */\ncontract ChainlinkOracle is AccessControlledV8, OracleInterface {\n    struct TokenConfig {\n        /// @notice Underlying token address, which can't be a null address\n        /// @notice Used to check if a token is supported\n        /// @notice 0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB address for native tokens\n        ///         (e.g BNB for BNB chain, ETH for Ethereum network)\n        address asset;\n        /// @notice Chainlink feed address\n        address feed;\n        /// @notice Price expiration period of this asset\n        uint256 maxStalePeriod;\n    }\n\n    /// @notice Set this as asset address for native token on each chain.\n    /// This is the underlying address for vBNB on BNB chain or an underlying asset for a native market on any chain.\n    address public constant NATIVE_TOKEN_ADDR = 0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB;\n\n    /// @notice Manually set an override price, useful under extenuating conditions such as price feed failure\n    mapping(address => uint256) public prices;\n\n    /// @notice Token config by assets\n    mapping(address => TokenConfig) public tokenConfigs;\n\n    /// @notice Emit when a price is manually set\n    event PricePosted(address indexed asset, uint256 previousPriceMantissa, uint256 newPriceMantissa);\n\n    /// @notice Emit when a token config is added\n    event TokenConfigAdded(address indexed asset, address feed, uint256 maxStalePeriod);\n\n    modifier notNullAddress(address someone) {\n        if (someone == address(0)) revert(\"can't be zero address\");\n        _;\n    }\n\n    /// @notice Constructor for the implementation contract.\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    constructor() {\n        _disableInitializers();\n    }\n\n    /**\n     * @notice Initializes the owner of the contract\n     * @param accessControlManager_ Address of the access control manager contract\n     */\n    function initialize(address accessControlManager_) external initializer {\n        __AccessControlled_init(accessControlManager_);\n    }\n\n    /**\n     * @notice Manually set the price of a given asset\n     * @param asset Asset address\n     * @param price Asset price in 18 decimals\n     * @custom:access Only Governance\n     * @custom:event Emits PricePosted event on successfully setup of asset price\n     */\n    function setDirectPrice(address asset, uint256 price) external notNullAddress(asset) {\n        _checkAccessAllowed(\"setDirectPrice(address,uint256)\");\n\n        uint256 previousPriceMantissa = prices[asset];\n        prices[asset] = price;\n        emit PricePosted(asset, previousPriceMantissa, price);\n    }\n\n    /**\n     * @notice Add multiple token configs at the same time\n     * @param tokenConfigs_ config array\n     * @custom:access Only Governance\n     * @custom:error Zero length error thrown, if length of the array in parameter is 0\n     */\n    function setTokenConfigs(TokenConfig[] memory tokenConfigs_) external {\n        if (tokenConfigs_.length == 0) revert(\"length can't be 0\");\n        uint256 numTokenConfigs = tokenConfigs_.length;\n        for (uint256 i; i < numTokenConfigs; ) {\n            setTokenConfig(tokenConfigs_[i]);\n            unchecked {\n                ++i;\n            }\n        }\n    }\n\n    /**\n     * @notice Add single token config. asset & feed cannot be null addresses and maxStalePeriod must be positive\n     * @param tokenConfig Token config struct\n     * @custom:access Only Governance\n     * @custom:error NotNullAddress error is thrown if asset address is null\n     * @custom:error NotNullAddress error is thrown if token feed address is null\n     * @custom:error Range error is thrown if maxStale period of token is not greater than zero\n     * @custom:event Emits TokenConfigAdded event on successfully setting of the token config\n     */\n    function setTokenConfig(\n        TokenConfig memory tokenConfig\n    ) public notNullAddress(tokenConfig.asset) notNullAddress(tokenConfig.feed) {\n        _checkAccessAllowed(\"setTokenConfig(TokenConfig)\");\n\n        if (tokenConfig.maxStalePeriod == 0) revert(\"stale period can't be zero\");\n        tokenConfigs[tokenConfig.asset] = tokenConfig;\n        emit TokenConfigAdded(tokenConfig.asset, tokenConfig.feed, tokenConfig.maxStalePeriod);\n    }\n\n    /**\n     * @notice Gets the price of a asset from the chainlink oracle\n     * @param asset Address of the asset\n     * @return Price in USD from Chainlink or a manually set price for the asset\n     */\n    function getPrice(address asset) public view virtual returns (uint256) {\n        uint256 decimals;\n\n        if (asset == NATIVE_TOKEN_ADDR) {\n            decimals = 18;\n        } else {\n            IERC20Metadata token = IERC20Metadata(asset);\n            decimals = token.decimals();\n        }\n\n        return _getPriceInternal(asset, decimals);\n    }\n\n    /**\n     * @notice Gets the Chainlink price for a given asset\n     * @param asset address of the asset\n     * @param decimals decimals of the asset\n     * @return price Asset price in USD or a manually set price of the asset\n     */\n    function _getPriceInternal(address asset, uint256 decimals) internal view returns (uint256 price) {\n        uint256 tokenPrice = prices[asset];\n        if (tokenPrice != 0) {\n            price = tokenPrice;\n        } else {\n            price = _getChainlinkPrice(asset);\n        }\n\n        uint256 decimalDelta = 18 - decimals;\n        return price * (10 ** decimalDelta);\n    }\n\n    /**\n     * @notice Get the Chainlink price for an asset, revert if token config doesn't exist\n     * @dev The precision of the price feed is used to ensure the returned price has 18 decimals of precision\n     * @param asset Address of the asset\n     * @return price Price in USD, with 18 decimals of precision\n     * @custom:error NotNullAddress error is thrown if the asset address is null\n     * @custom:error Price error is thrown if the Chainlink price of asset is not greater than zero\n     * @custom:error Timing error is thrown if current timestamp is less than the last updatedAt timestamp\n     * @custom:error Timing error is thrown if time difference between current time and last updated time\n     * is greater than maxStalePeriod\n     */\n    function _getChainlinkPrice(\n        address asset\n    ) private view notNullAddress(tokenConfigs[asset].asset) returns (uint256) {\n        TokenConfig memory tokenConfig = tokenConfigs[asset];\n        AggregatorV3Interface feed = AggregatorV3Interface(tokenConfig.feed);\n\n        // note: maxStalePeriod cannot be 0\n        uint256 maxStalePeriod = tokenConfig.maxStalePeriod;\n\n        // Chainlink USD-denominated feeds store answers at 8 decimals, mostly\n        uint256 decimalDelta = 18 - feed.decimals();\n\n        (, int256 answer, , uint256 updatedAt, ) = feed.latestRoundData();\n        if (answer <= 0) revert(\"chainlink price must be positive\");\n        if (block.timestamp < updatedAt) revert(\"updatedAt exceeds block time\");\n\n        uint256 deltaTime;\n        unchecked {\n            deltaTime = block.timestamp - updatedAt;\n        }\n\n        if (deltaTime > maxStalePeriod) revert(\"chainlink price expired\");\n\n        return uint256(answer) * (10 ** decimalDelta);\n    }\n}\n"
    },
    "contracts/oracles/common/CorrelatedTokenOracle.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\nimport { OracleInterface } from \"../../interfaces/OracleInterface.sol\";\nimport { ensureNonzeroAddress } from \"@venusprotocol/solidity-utilities/contracts/validators.sol\";\nimport { IERC20Metadata } from \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\n\n/**\n * @title CorrelatedTokenOracle\n * @notice This oracle fetches the price of a token that is correlated to another token.\n */\nabstract contract CorrelatedTokenOracle is OracleInterface {\n    /// @notice Address of the correlated token\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    address public immutable CORRELATED_TOKEN;\n\n    /// @notice Address of the underlying token\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    address public immutable UNDERLYING_TOKEN;\n\n    /// @notice Address of Resilient Oracle\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    OracleInterface public immutable RESILIENT_ORACLE;\n\n    /// @notice Thrown if the token address is invalid\n    error InvalidTokenAddress();\n\n    /// @notice Constructor for the implementation contract.\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    constructor(address correlatedToken, address underlyingToken, address resilientOracle) {\n        ensureNonzeroAddress(correlatedToken);\n        ensureNonzeroAddress(underlyingToken);\n        ensureNonzeroAddress(resilientOracle);\n        CORRELATED_TOKEN = correlatedToken;\n        UNDERLYING_TOKEN = underlyingToken;\n        RESILIENT_ORACLE = OracleInterface(resilientOracle);\n    }\n\n    /**\n     * @notice Fetches the price of the correlated token\n     * @param asset Address of the correlated token\n     * @return price The price of the correlated token in scaled decimal places\n     */\n    function getPrice(address asset) external view override returns (uint256) {\n        if (asset != CORRELATED_TOKEN) revert InvalidTokenAddress();\n\n        // get underlying token amount for 1 correlated token scaled by underlying token decimals\n        uint256 underlyingAmount = _getUnderlyingAmount();\n\n        // oracle returns (36 - asset decimal) scaled price\n        uint256 underlyingUSDPrice = RESILIENT_ORACLE.getPrice(UNDERLYING_TOKEN);\n\n        IERC20Metadata token = IERC20Metadata(CORRELATED_TOKEN);\n        uint256 decimals = token.decimals();\n\n        // underlyingAmount (for 1 correlated token) * underlyingUSDPrice / decimals(correlated token)\n        return (underlyingAmount * underlyingUSDPrice) / (10 ** decimals);\n    }\n\n    /**\n     * @notice Gets the underlying amount for correlated token\n     * @return underlyingAmount Amount of underlying token\n     */\n    function _getUnderlyingAmount() internal view virtual returns (uint256);\n}\n"
    },
    "contracts/oracles/EtherfiAccountantOracle.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\nimport { CorrelatedTokenOracle } from \"./common/CorrelatedTokenOracle.sol\";\nimport { IAccountant } from \"../interfaces/IAccountant.sol\";\nimport { ensureNonzeroAddress } from \"@venusprotocol/solidity-utilities/contracts/validators.sol\";\n\n/**\n * @title EtherfiAccountantOracle\n * @author Venus\n * @notice This oracle fetches the price of eBTC\n */\ncontract EtherfiAccountantOracle is CorrelatedTokenOracle {\n    /// @notice Address of Accountant\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    IAccountant public immutable ACCOUNTANT;\n\n    /// @notice Constructor for the implementation contract.\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    constructor(\n        address accountant,\n        address eBTC,\n        address wbtc,\n        address resilientOracle\n    ) CorrelatedTokenOracle(eBTC, wbtc, resilientOracle) {\n        ensureNonzeroAddress(accountant);\n        ACCOUNTANT = IAccountant(accountant);\n    }\n\n    /**\n     * @notice Gets the WBTC for 1 eBTC\n     * @return amount Amount of WBTC\n     */\n    function _getUnderlyingAmount() internal view override returns (uint256) {\n        return ACCOUNTANT.getRateSafe();\n    }\n}\n"
    },
    "contracts/oracles/SequencerChainlinkOracle.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.25;\n\nimport { ChainlinkOracle } from \"./ChainlinkOracle.sol\";\nimport { AggregatorV3Interface } from \"@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol\";\n\n/**\n    @title Sequencer Chain Link Oracle\n    @notice Oracle to fetch price using chainlink oracles on L2s with sequencer\n*/\ncontract SequencerChainlinkOracle is ChainlinkOracle {\n    /// @notice L2 Sequencer feed\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    AggregatorV3Interface public immutable sequencer;\n\n    /// @notice L2 Sequencer grace period\n    uint256 public constant GRACE_PERIOD_TIME = 3600;\n\n    /**\n        @notice Contract constructor\n        @param _sequencer L2 sequencer\n        @custom:oz-upgrades-unsafe-allow constructor\n    */\n    constructor(AggregatorV3Interface _sequencer) ChainlinkOracle() {\n        require(address(_sequencer) != address(0), \"zero address\");\n\n        sequencer = _sequencer;\n    }\n\n    /// @inheritdoc ChainlinkOracle\n    function getPrice(address asset) public view override returns (uint) {\n        if (!isSequencerActive()) revert(\"L2 sequencer unavailable\");\n        return super.getPrice(asset);\n    }\n\n    function isSequencerActive() internal view returns (bool) {\n        // answer from oracle is a variable with a value of either 1 or 0\n        //  0: The sequencer is up\n        //  1: The sequencer is down\n        // startedAt: This timestamp indicates when the sequencer changed status\n        (, int256 answer, uint256 startedAt, , ) = sequencer.latestRoundData();\n        if (block.timestamp - startedAt <= GRACE_PERIOD_TIME || answer == 1) return false;\n        return true;\n    }\n}\n"
    },
    "contracts/oracles/WeETHAccountantOracle.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\npragma solidity 0.8.25;\n\nimport { CorrelatedTokenOracle } from \"./common/CorrelatedTokenOracle.sol\";\nimport { IAccountant } from \"../interfaces/IAccountant.sol\";\nimport { ensureNonzeroAddress } from \"@venusprotocol/solidity-utilities/contracts/validators.sol\";\n\n/**\n * @title WeETHAccountantOracle\n * @author Venus\n * @notice This oracle fetches the price of Ether.fi tokens based on an `Accountant` contract (i.e. weETHs and weETHk)\n */\ncontract WeETHAccountantOracle is CorrelatedTokenOracle {\n    /// @notice Address of Accountant\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    IAccountant public immutable ACCOUNTANT;\n\n    /// @notice Constructor for the implementation contract.\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    constructor(\n        address accountant,\n        address weethLRT,\n        address weth,\n        address resilientOracle\n    ) CorrelatedTokenOracle(weethLRT, weth, resilientOracle) {\n        ensureNonzeroAddress(accountant);\n        ACCOUNTANT = IAccountant(accountant);\n    }\n\n    /**\n     * @notice Gets the WETH for 1 weETH LRT\n     * @return amount Amount of WETH\n     */\n    function _getUnderlyingAmount() internal view override returns (uint256) {\n        return ACCOUNTANT.getRateSafe();\n    }\n}\n"
    },
    "contracts/ResilientOracle.sol": {
      "content": "// SPDX-License-Identifier: BSD-3-Clause\n// SPDX-FileCopyrightText: 2022 Venus\npragma solidity 0.8.25;\n\nimport \"@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol\";\nimport \"./interfaces/VBep20Interface.sol\";\nimport \"./interfaces/OracleInterface.sol\";\nimport \"@venusprotocol/governance-contracts/contracts/Governance/AccessControlledV8.sol\";\n\n/**\n * @title ResilientOracle\n * @author Venus\n * @notice The Resilient Oracle is the main contract that the protocol uses to fetch prices of assets.\n *\n * DeFi protocols are vulnerable to price oracle failures including oracle manipulation and incorrectly\n * reported prices. If only one oracle is used, this creates a single point of failure and opens a vector\n * for attacking the protocol.\n *\n * The Resilient Oracle uses multiple sources and fallback mechanisms to provide accurate prices and protect\n * the protocol from oracle attacks. Currently it includes integrations with Chainlink, Pyth, Binance Oracle\n * and TWAP (Time-Weighted Average Price) oracles. TWAP uses PancakeSwap as the on-chain price source.\n *\n * For every market (vToken) we configure the main, pivot and fallback oracles. The oracles are configured per\n * vToken's underlying asset address. The main oracle oracle is the most trustworthy price source, the pivot\n * oracle is used as a loose sanity checker and the fallback oracle is used as a backup price source.\n *\n * To validate prices returned from two oracles, we use an upper and lower bound ratio that is set for every\n * market. The upper bound ratio represents the deviation between reported price (the price that’s being\n * validated) and the anchor price (the price we are validating against) above which the reported price will\n * be invalidated. The lower bound ratio presents the deviation between reported price and anchor price below\n * which the reported price will be invalidated. So for oracle price to be considered valid the below statement\n * should be true:\n\n```\nanchorRatio = anchorPrice/reporterPrice\nisValid = anchorRatio <= upperBoundAnchorRatio && anchorRatio >= lowerBoundAnchorRatio\n```\n\n * In most cases, Chainlink is used as the main oracle, TWAP or Pyth oracles are used as the pivot oracle depending\n * on which supports the given market and Binance oracle is used as the fallback oracle. For some markets we may\n * use Pyth or TWAP as the main oracle if the token price is not supported by Chainlink or Binance oracles.\n *\n * For a fetched price to be valid it must be positive and not stagnant. If the price is invalid then we consider the\n * oracle to be stagnant and treat it like it's disabled.\n */\ncontract ResilientOracle is PausableUpgradeable, AccessControlledV8, ResilientOracleInterface {\n    /**\n     * @dev Oracle roles:\n     * **main**: The most trustworthy price source\n     * **pivot**: Price oracle used as a loose sanity checker\n     * **fallback**: The backup source when main oracle price is invalidated\n     */\n    enum OracleRole {\n        MAIN,\n        PIVOT,\n        FALLBACK\n    }\n\n    struct TokenConfig {\n        /// @notice asset address\n        address asset;\n        /// @notice `oracles` stores the oracles based on their role in the following order:\n        /// [main, pivot, fallback],\n        /// It can be indexed with the corresponding enum OracleRole value\n        address[3] oracles;\n        /// @notice `enableFlagsForOracles` stores the enabled state\n        /// for each oracle in the same order as `oracles`\n        bool[3] enableFlagsForOracles;\n    }\n\n    uint256 public constant INVALID_PRICE = 0;\n\n    /// @notice Native market address\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    address public immutable nativeMarket;\n\n    /// @notice VAI address\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    address public immutable vai;\n\n    /// @notice Set this as asset address for Native token on each chain.This is the underlying for vBNB (on bsc)\n    /// and can serve as any underlying asset of a market that supports native tokens\n    address public constant NATIVE_TOKEN_ADDR = 0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB;\n\n    /// @notice Bound validator contract address\n    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable\n    BoundValidatorInterface public immutable boundValidator;\n\n    mapping(address => TokenConfig) private tokenConfigs;\n\n    event TokenConfigAdded(\n        address indexed asset,\n        address indexed mainOracle,\n        address indexed pivotOracle,\n        address fallbackOracle\n    );\n\n    /// Event emitted when an oracle is set\n    event OracleSet(address indexed asset, address indexed oracle, uint256 indexed role);\n\n    /// Event emitted when an oracle is enabled or disabled\n    event OracleEnabled(address indexed asset, uint256 indexed role, bool indexed enable);\n\n    /**\n     * @notice Checks whether an address is null or not\n     */\n    modifier notNullAddress(address someone) {\n        if (someone == address(0)) revert(\"can't be zero address\");\n        _;\n    }\n\n    /**\n     * @notice Checks whether token config exists by checking whether asset is null address\n     * @dev address can't be null, so it's suitable to be used to check the validity of the config\n     * @param asset asset address\n     */\n    modifier checkTokenConfigExistence(address asset) {\n        if (tokenConfigs[asset].asset == address(0)) revert(\"token config must exist\");\n        _;\n    }\n\n    /// @notice Constructor for the implementation contract. Sets immutable variables.\n    /// @dev nativeMarketAddress can be address(0) if on the chain we do not support native market\n    ///      (e.g vETH on ethereum would not be supported, only vWETH)\n    /// @param nativeMarketAddress The address of a native market (for bsc it would be vBNB address)\n    /// @param vaiAddress The address of the VAI token (if there is VAI on the deployed chain).\n    ///          Set to address(0) of VAI is not existent.\n    /// @param _boundValidator Address of the bound validator contract\n    /// @custom:oz-upgrades-unsafe-allow constructor\n    constructor(\n        address nativeMarketAddress,\n        address vaiAddress,\n        BoundValidatorInterface _boundValidator\n    ) notNullAddress(address(_boundValidator)) {\n        nativeMarket = nativeMarketAddress;\n        vai = vaiAddress;\n        boundValidator = _boundValidator;\n\n        _disableInitializers();\n    }\n\n    /**\n     * @notice Initializes the contract admin and sets the BoundValidator contract address\n     * @param accessControlManager_ Address of the access control manager contract\n     */\n    function initialize(address accessControlManager_) external initializer {\n        __AccessControlled_init(accessControlManager_);\n        __Pausable_init();\n    }\n\n    /**\n     * @notice Pauses oracle\n     * @custom:access Only Governance\n     */\n    function pause() external {\n        _checkAccessAllowed(\"pause()\");\n        _pause();\n    }\n\n    /**\n     * @notice Unpauses oracle\n     * @custom:access Only Governance\n     */\n    function unpause() external {\n        _checkAccessAllowed(\"unpause()\");\n        _unpause();\n    }\n\n    /**\n     * @notice Batch sets token configs\n     * @param tokenConfigs_ Token config array\n     * @custom:access Only Governance\n     * @custom:error Throws a length error if the length of the token configs array is 0\n     */\n    function setTokenConfigs(TokenConfig[] memory tokenConfigs_) external {\n        if (tokenConfigs_.length == 0) revert(\"length can't be 0\");\n        uint256 numTokenConfigs = tokenConfigs_.length;\n        for (uint256 i; i < numTokenConfigs; ) {\n            setTokenConfig(tokenConfigs_[i]);\n            unchecked {\n                ++i;\n            }\n        }\n    }\n\n    /**\n     * @notice Sets oracle for a given asset and role.\n     * @dev Supplied asset **must** exist and main oracle may not be null\n     * @param asset Asset address\n     * @param oracle Oracle address\n     * @param role Oracle role\n     * @custom:access Only Governance\n     * @custom:error Null address error if main-role oracle address is null\n     * @custom:error NotNullAddress error is thrown if asset address is null\n     * @custom:error TokenConfigExistance error is thrown if token config is not set\n     * @custom:event Emits OracleSet event with asset address, oracle address and role of the oracle for the asset\n     */\n    function setOracle(\n        address asset,\n        address oracle,\n        OracleRole role\n    ) external notNullAddress(asset) checkTokenConfigExistence(asset) {\n        _checkAccessAllowed(\"setOracle(address,address,uint8)\");\n        if (oracle == address(0) && role == OracleRole.MAIN) revert(\"can't set zero address to main oracle\");\n        tokenConfigs[asset].oracles[uint256(role)] = oracle;\n        emit OracleSet(asset, oracle, uint256(role));\n    }\n\n    /**\n     * @notice Enables/ disables oracle for the input asset. Token config for the input asset **must** exist\n     * @dev Configuration for the asset **must** already exist and the asset cannot be 0 address\n     * @param asset Asset address\n     * @param role Oracle role\n     * @param enable Enabled boolean of the oracle\n     * @custom:access Only Governance\n     * @custom:error NotNullAddress error is thrown if asset address is null\n     * @custom:error TokenConfigExistance error is thrown if token config is not set\n     */\n    function enableOracle(\n        address asset,\n        OracleRole role,\n        bool enable\n    ) external notNullAddress(asset) checkTokenConfigExistence(asset) {\n        _checkAccessAllowed(\"enableOracle(address,uint8,bool)\");\n        tokenConfigs[asset].enableFlagsForOracles[uint256(role)] = enable;\n        emit OracleEnabled(asset, uint256(role), enable);\n    }\n\n    /**\n     * @notice Updates the TWAP pivot oracle price.\n     * @dev This function should always be called before calling getUnderlyingPrice\n     * @param vToken vToken address\n     */\n    function updatePrice(address vToken) external override {\n        address asset = _getUnderlyingAsset(vToken);\n        (address pivotOracle, bool pivotOracleEnabled) = getOracle(asset, OracleRole.PIVOT);\n        if (pivotOracle != address(0) && pivotOracleEnabled) {\n            //if pivot oracle is not TwapOracle it will revert so we need to catch the revert\n            try TwapInterface(pivotOracle).updateTwap(asset) {} catch {}\n        }\n    }\n\n    /**\n     * @notice Updates the pivot oracle price. Currently using TWAP\n     * @dev This function should always be called before calling getPrice\n     * @param asset asset address\n     */\n    function updateAssetPrice(address asset) external {\n        (address pivotOracle, bool pivotOracleEnabled) = getOracle(asset, OracleRole.PIVOT);\n        if (pivotOracle != address(0) && pivotOracleEnabled) {\n            //if pivot oracle is not TwapOracle it will revert so we need to catch the revert\n            try TwapInterface(pivotOracle).updateTwap(asset) {} catch {}\n        }\n    }\n\n    /**\n     * @dev Gets token config by asset address\n     * @param asset asset address\n     * @return tokenConfig Config for the asset\n     */\n    function getTokenConfig(address asset) external view returns (TokenConfig memory) {\n        return tokenConfigs[asset];\n    }\n\n    /**\n     * @notice Gets price of the underlying asset for a given vToken. Validation flow:\n     * - Check if the oracle is paused globally\n     * - Validate price from main oracle against pivot oracle\n     * - Validate price from fallback oracle against pivot oracle if the first validation failed\n     * - Validate price from main oracle against fallback oracle if the second validation failed\n     * In the case that the pivot oracle is not available but main price is available and validation is successful,\n     * main oracle price is returned.\n     * @param vToken vToken address\n     * @return price USD price in scaled decimal places.\n     * @custom:error Paused error is thrown when resilent oracle is paused\n     * @custom:error Invalid resilient oracle price error is thrown if fetched prices from oracle is invalid\n     */\n    function getUnderlyingPrice(address vToken) external view override returns (uint256) {\n        if (paused()) revert(\"resilient oracle is paused\");\n\n        address asset = _getUnderlyingAsset(vToken);\n        return _getPrice(asset);\n    }\n\n    /**\n     * @notice Gets price of the asset\n     * @param asset asset address\n     * @return price USD price in scaled decimal places.\n     * @custom:error Paused error is thrown when resilent oracle is paused\n     * @custom:error Invalid resilient oracle price error is thrown if fetched prices from oracle is invalid\n     */\n    function getPrice(address asset) external view override returns (uint256) {\n        if (paused()) revert(\"resilient oracle is paused\");\n        return _getPrice(asset);\n    }\n\n    /**\n     * @notice Sets/resets single token configs.\n     * @dev main oracle **must not** be a null address\n     * @param tokenConfig Token config struct\n     * @custom:access Only Governance\n     * @custom:error NotNullAddress is thrown if asset address is null\n     * @custom:error NotNullAddress is thrown if main-role oracle address for asset is null\n     * @custom:event Emits TokenConfigAdded event when the asset config is set successfully by the authorized account\n     */\n    function setTokenConfig(\n        TokenConfig memory tokenConfig\n    ) public notNullAddress(tokenConfig.asset) notNullAddress(tokenConfig.oracles[uint256(OracleRole.MAIN)]) {\n        _checkAccessAllowed(\"setTokenConfig(TokenConfig)\");\n\n        tokenConfigs[tokenConfig.asset] = tokenConfig;\n        emit TokenConfigAdded(\n            tokenConfig.asset,\n            tokenConfig.oracles[uint256(OracleRole.MAIN)],\n            tokenConfig.oracles[uint256(OracleRole.PIVOT)],\n            tokenConfig.oracles[uint256(OracleRole.FALLBACK)]\n        );\n    }\n\n    /**\n     * @notice Gets oracle and enabled status by asset address\n     * @param asset asset address\n     * @param role Oracle role\n     * @return oracle Oracle address based on role\n     * @return enabled Enabled flag of the oracle based on token config\n     */\n    function getOracle(address asset, OracleRole role) public view returns (address oracle, bool enabled) {\n        oracle = tokenConfigs[asset].oracles[uint256(role)];\n        enabled = tokenConfigs[asset].enableFlagsForOracles[uint256(role)];\n    }\n\n    function _getPrice(address asset) internal view returns (uint256) {\n        uint256 pivotPrice = INVALID_PRICE;\n\n        // Get pivot oracle price, Invalid price if not available or error\n        (address pivotOracle, bool pivotOracleEnabled) = getOracle(asset, OracleRole.PIVOT);\n        if (pivotOracleEnabled && pivotOracle != address(0)) {\n            try OracleInterface(pivotOracle).getPrice(asset) returns (uint256 pricePivot) {\n                pivotPrice = pricePivot;\n            } catch {}\n        }\n\n        // Compare main price and pivot price, return main price and if validation was successful\n        // note: In case pivot oracle is not available but main price is available and\n        // validation is successful, the main oracle price is returned.\n        (uint256 mainPrice, bool validatedPivotMain) = _getMainOraclePrice(\n            asset,\n            pivotPrice,\n            pivotOracleEnabled && pivotOracle != address(0)\n        );\n        if (mainPrice != INVALID_PRICE && validatedPivotMain) return mainPrice;\n\n        // Compare fallback and pivot if main oracle comparision fails with pivot\n        // Return fallback price when fallback price is validated successfully with pivot oracle\n        (uint256 fallbackPrice, bool validatedPivotFallback) = _getFallbackOraclePrice(asset, pivotPrice);\n        if (fallbackPrice != INVALID_PRICE && validatedPivotFallback) return fallbackPrice;\n\n        // Lastly compare main price and fallback price\n        if (\n            mainPrice != INVALID_PRICE &&\n            fallbackPrice != INVALID_PRICE &&\n            boundValidator.validatePriceWithAnchorPrice(asset, mainPrice, fallbackPrice)\n        ) {\n            return mainPrice;\n        }\n\n        revert(\"invalid resilient oracle price\");\n    }\n\n    /**\n     * @notice Gets a price for the provided asset\n     * @dev This function won't revert when price is 0, because the fallback oracle may still be\n     * able to fetch a correct price\n     * @param asset asset address\n     * @param pivotPrice Pivot oracle price\n     * @param pivotEnabled If pivot oracle is not empty and enabled\n     * @return price USD price in scaled decimals\n     * e.g. asset decimals is 8 then price is returned as 10**18 * 10**(18-8) = 10**28 decimals\n     * @return pivotValidated Boolean representing if the validation of main oracle price\n     * and pivot oracle price were successful\n     * @custom:error Invalid price error is thrown if main oracle fails to fetch price of the asset\n     * @custom:error Invalid price error is thrown if main oracle is not enabled or main oracle\n     * address is null\n     */\n    function _getMainOraclePrice(\n        address asset,\n        uint256 pivotPrice,\n        bool pivotEnabled\n    ) internal view returns (uint256, bool) {\n        (address mainOracle, bool mainOracleEnabled) = getOracle(asset, OracleRole.MAIN);\n        if (mainOracleEnabled && mainOracle != address(0)) {\n            try OracleInterface(mainOracle).getPrice(asset) returns (uint256 mainOraclePrice) {\n                if (!pivotEnabled) {\n                    return (mainOraclePrice, true);\n                }\n                if (pivotPrice == INVALID_PRICE) {\n                    return (mainOraclePrice, false);\n                }\n                return (\n                    mainOraclePrice,\n                    boundValidator.validatePriceWithAnchorPrice(asset, mainOraclePrice, pivotPrice)\n                );\n            } catch {\n                return (INVALID_PRICE, false);\n            }\n        }\n\n        return (INVALID_PRICE, false);\n    }\n\n    /**\n     * @dev This function won't revert when the price is 0 because getPrice checks if price is > 0\n     * @param asset asset address\n     * @return price USD price in 18 decimals\n     * @return pivotValidated Boolean representing if the validation of fallback oracle price\n     * and pivot oracle price were successfully\n     * @custom:error Invalid price error is thrown if fallback oracle fails to fetch price of the asset\n     * @custom:error Invalid price error is thrown if fallback oracle is not enabled or fallback oracle\n     * address is null\n     */\n    function _getFallbackOraclePrice(address asset, uint256 pivotPrice) private view returns (uint256, bool) {\n        (address fallbackOracle, bool fallbackEnabled) = getOracle(asset, OracleRole.FALLBACK);\n        if (fallbackEnabled && fallbackOracle != address(0)) {\n            try OracleInterface(fallbackOracle).getPrice(asset) returns (uint256 fallbackOraclePrice) {\n                if (pivotPrice == INVALID_PRICE) {\n                    return (fallbackOraclePrice, false);\n                }\n                return (\n                    fallbackOraclePrice,\n                    boundValidator.validatePriceWithAnchorPrice(asset, fallbackOraclePrice, pivotPrice)\n                );\n            } catch {\n                return (INVALID_PRICE, false);\n            }\n        }\n\n        return (INVALID_PRICE, false);\n    }\n\n    /**\n     * @dev This function returns the underlying asset of a vToken\n     * @param vToken vToken address\n     * @return asset underlying asset address\n     */\n    function _getUnderlyingAsset(address vToken) private view notNullAddress(vToken) returns (address asset) {\n        if (vToken == nativeMarket) {\n            asset = NATIVE_TOKEN_ADDR;\n        } else if (vToken == vai) {\n            asset = vai;\n        } else {\n            asset = VBep20Interface(vToken).underlying();\n        }\n    }\n}\n"
    }
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