{
   "status":"1",
   "message":"OK",
   "result":"[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"string\",\"name\":\"key\",\"type\":\"string\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"value\",\"type\":\"bytes\"}],\"name\":\"paramChange\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"receiveDeposit\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"bep20Addr\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"refundAddr\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint32\",\"name\":\"status\",\"type\":\"uint32\"}],\"name\":\"refundFailure\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"bep20Addr\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"refundAddr\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint32\",\"name\":\"status\",\"type\":\"uint32\"}],\"name\":\"refundSuccess\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"rewardTo\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"bep20Addr\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"refundAddr\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transferInSuccess\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"bep20Addr\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"senderAddr\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"relayFee\",\"type\":\"uint256\"}],\"name\":\"transferOutSuccess\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"channelId\",\"type\":\"uint8\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"msgBytes\",\"type\":\"bytes\"}],\"name\":\"unexpectedPackage\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"BEP2_TOKEN_DECIMALS\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"BEP2_TOKEN_SYMBOL_FOR_BNB\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"BIND_CHANNELID\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"CODE_OK\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"CROSS_CHAIN_CONTRACT_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"ERROR_FAIL_DECODE\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"GOV_CHANNELID\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"GOV_HUB_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"INCENTIVIZE_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"INIT_MINIMUM_RELAY_FEE\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"LIGHT_CLIENT_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"MAXIMUM_BEP20_SYMBOL_LEN\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"MAX_BEP2_TOTAL_SUPPLY\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"MAX_GAS_FOR_CALLING_BEP20\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"MAX_GAS_FOR_TRANSFER_BNB\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"MINIMUM_BEP20_SYMBOL_LEN\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"RELAYERHUB_CONTRACT_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"REWARD_UPPER_LIMIT\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"SLASH_CHANNELID\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"SLASH_CONTRACT_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"STAKING_CHANNELID\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"SYSTEM_REWARD_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TEN_DECIMALS\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TOKEN_HUB_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TOKEN_MANAGER_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TRANSFER_IN_CHANNELID\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TRANSFER_IN_FAILURE_INSUFFICIENT_BALANCE\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TRANSFER_IN_FAILURE_NON_PAYABLE_RECIPIENT\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TRANSFER_IN_FAILURE_TIMEOUT\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TRANSFER_IN_FAILURE_UNBOUND_TOKEN\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TRANSFER_IN_FAILURE_UNKNOWN\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TRANSFER_IN_SUCCESS\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"TRANSFER_OUT_CHANNELID\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"VALIDATOR_CONTRACT_ADDR\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"alreadyInit\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address[]\",\"name\":\"recipientAddrs\",\"type\":\"address[]\"},{\"internalType\":\"uint256[]\",\"name\":\"amounts\",\"type\":\"uint256[]\"},{\"internalType\":\"address[]\",\"name\":\"refundAddrs\",\"type\":\"address[]\"},{\"internalType\":\"uint64\",\"name\":\"expireTime\",\"type\":\"uint64\"}],\"name\":\"batchTransferOutBNB\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"payable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"bep20ContractDecimals\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"bep2Symbol\",\"type\":\"bytes32\"},{\"internalType\":\"address\",\"name\":\"contractAddr\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"decimals\",\"type\":\"uint256\"}],\"name\":\"bindToken\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"bscChainID\",\"outputs\":[{\"internalType\":\"uint16\",\"name\":\"\",\"type\":\"uint16\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address 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}

{
   "status":"1",
   "message":"OK",
   "result":[
      {
         "SourceCode":"pragma solidity 0.6.12;\r\n\r\n\r\n// \r\n/*\r\n * @dev Provides information about the current execution context, including the\r\n * sender of the transaction and its data. While these are generally available\r\n * via msg.sender and msg.data, they should not be accessed in such a direct\r\n * manner, since when dealing with GSN meta-transactions the account sending and\r\n * paying for execution may not be the actual sender (as far as an application\r\n * is concerned).\r\n *\r\n * This contract is only required for intermediate, library-like contracts.\r\n */\r\ncontract Context {\r\n    // Empty internal constructor, to prevent people from mistakenly deploying\r\n    // an instance of this contract, which should be used via inheritance.\r\n    constructor() internal {}\r\n\r\n    function _msgSender() internal view returns (address payable) {\r\n        return msg.sender;\r\n    }\r\n\r\n    function _msgData() internal view returns (bytes memory) {\r\n        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\r\n        return msg.data;\r\n    }\r\n}\r\n\r\n// \r\n/**\r\n * @dev Contract module which provides a basic access control mechanism, where\r\n * there is an account (an owner) that can be granted exclusive access to\r\n * specific functions.\r\n *\r\n * By default, the owner account will be the one that deploys the contract. This\r\n * can later be changed with {transferOwnership}.\r\n *\r\n * This module is used through inheritance. It will make available the modifier\r\n * `onlyOwner`, which can be applied to your functions to restrict their use to\r\n * the owner.\r\n */\r\ncontract Ownable is Context {\r\n    address private _owner;\r\n\r\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\r\n\r\n    /**\r\n     * @dev Initializes the contract setting the deployer as the initial owner.\r\n     */\r\n    constructor() internal {\r\n        address msgSender = _msgSender();\r\n        _owner = msgSender;\r\n        emit OwnershipTransferred(address(0), msgSender);\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the address of the current owner.\r\n     */\r\n    function owner() public view returns (address) {\r\n        return _owner;\r\n    }\r\n\r\n    /**\r\n     * @dev Throws if called by any account other than the owner.\r\n     */\r\n    modifier onlyOwner() {\r\n        require(_owner == _msgSender(), 'Ownable: caller is not the owner');\r\n        _;\r\n    }\r\n\r\n    /**\r\n     * @dev Leaves the contract without owner. It will not be possible to call\r\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\r\n     *\r\n     * NOTE: Renouncing ownership will leave the contract without an owner,\r\n     * thereby removing any functionality that is only available to the owner.\r\n     */\r\n    function renounceOwnership() public onlyOwner {\r\n        emit OwnershipTransferred(_owner, address(0));\r\n        _owner = address(0);\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r\n     * Can only be called by the current owner.\r\n     */\r\n    function transferOwnership(address newOwner) public onlyOwner {\r\n        _transferOwnership(newOwner);\r\n    }\r\n\r\n    /**\r\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\r\n     */\r\n    function _transferOwnership(address newOwner) internal {\r\n        require(newOwner != address(0), 'Ownable: new owner is the zero address');\r\n        emit OwnershipTransferred(_owner, newOwner);\r\n        _owner = newOwner;\r\n    }\r\n}\r\n\r\n// \r\ninterface IBEP20 {\r\n    /**\r\n     * @dev Returns the amount of tokens in existence.\r\n     */\r\n    function totalSupply() external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Returns the token decimals.\r\n     */\r\n    function decimals() external view returns (uint8);\r\n\r\n    /**\r\n     * @dev Returns the token symbol.\r\n     */\r\n    function symbol() external view returns (string memory);\r\n\r\n    /**\r\n     * @dev Returns the token name.\r\n     */\r\n    function name() external view returns (string memory);\r\n\r\n    /**\r\n     * @dev Returns the bep token owner.\r\n     */\r\n    function getOwner() external view returns (address);\r\n\r\n    /**\r\n     * @dev Returns the amount of tokens owned by `account`.\r\n     */\r\n    function balanceOf(address account) external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Moves `amount` tokens from the caller's account to `recipient`.\r\n     *\r\n     * Returns a boolean value indicating whether the operation succeeded.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function transfer(address recipient, uint256 amount) external returns (bool);\r\n\r\n    /**\r\n     * @dev Returns the remaining number of tokens that `spender` will be\r\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\r\n     * zero by default.\r\n     *\r\n     * This value changes when {approve} or {transferFrom} are called.\r\n     */\r\n    function allowance(address _owner, address spender) external view returns (uint256);\r\n\r\n    /**\r\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\r\n     *\r\n     * Returns a boolean value indicating whether the operation succeeded.\r\n     *\r\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\r\n     * that someone may use both the old and the new allowance by unfortunate\r\n     * transaction ordering. One possible solution to mitigate this race\r\n     * condition is to first reduce the spender's allowance to 0 and set the\r\n     * desired value afterwards:\r\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\r\n     *\r\n     * Emits an {Approval} event.\r\n     */\r\n    function approve(address spender, uint256 amount) external returns (bool);\r\n\r\n    /**\r\n     * @dev Moves `amount` tokens from `sender` to `recipient` using the\r\n     * allowance mechanism. `amount` is then deducted from the caller's\r\n     * allowance.\r\n     *\r\n     * Returns a boolean value indicating whether the operation succeeded.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     */\r\n    function transferFrom(\r\n        address sender,\r\n        address recipient,\r\n        uint256 amount\r\n    ) external returns (bool);\r\n\r\n    /**\r\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\r\n     * another (`to`).\r\n     *\r\n     * Note that `value` may be zero.\r\n     */\r\n    event Transfer(address indexed from, address indexed to, uint256 value);\r\n\r\n    /**\r\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\r\n     * a call to {approve}. `value` is the new allowance.\r\n     */\r\n    event Approval(address indexed owner, address indexed spender, uint256 value);\r\n}\r\n\r\n// \r\n/**\r\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\r\n * checks.\r\n *\r\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\r\n * in bugs, because programmers usually assume that an overflow raises an\r\n * error, which is the standard behavior in high level programming languages.\r\n * `SafeMath` restores this intuition by reverting the transaction when an\r\n * operation overflows.\r\n *\r\n * Using this library instead of the unchecked operations eliminates an entire\r\n * class of bugs, so it's recommended to use it always.\r\n */\r\nlibrary SafeMath {\r\n    /**\r\n     * @dev Returns the addition of two unsigned integers, reverting on\r\n     * overflow.\r\n     *\r\n     * Counterpart to Solidity's `+` operator.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - Addition cannot overflow.\r\n     */\r\n    function add(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        uint256 c = a + b;\r\n        require(c >= a, 'SafeMath: addition overflow');\r\n\r\n        return c;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the subtraction of two unsigned integers, reverting on\r\n     * overflow (when the result is negative).\r\n     *\r\n     * Counterpart to Solidity's `-` operator.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - Subtraction cannot overflow.\r\n     */\r\n    function sub(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        return sub(a, b, 'SafeMath: subtraction overflow');\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\r\n     * overflow (when the result is negative).\r\n     *\r\n     * Counterpart to Solidity's `-` operator.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - Subtraction cannot overflow.\r\n     */\r\n    function sub(\r\n        uint256 a,\r\n        uint256 b,\r\n        string memory errorMessage\r\n    ) internal pure returns (uint256) {\r\n        require(b <= a, errorMessage);\r\n        uint256 c = a - b;\r\n\r\n        return c;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the multiplication of two unsigned integers, reverting on\r\n     * overflow.\r\n     *\r\n     * Counterpart to Solidity's `*` operator.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - Multiplication cannot overflow.\r\n     */\r\n    function mul(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\r\n        // benefit is lost if 'b' is also tested.\r\n        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\r\n        if (a == 0) {\r\n            return 0;\r\n        }\r\n\r\n        uint256 c = a * b;\r\n        require(c / a == b, 'SafeMath: multiplication overflow');\r\n\r\n        return c;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the integer division of two unsigned integers. Reverts on\r\n     * division by zero. The result is rounded towards zero.\r\n     *\r\n     * Counterpart to Solidity's `/` operator. Note: this function uses a\r\n     * `revert` opcode (which leaves remaining gas untouched) while Solidity\r\n     * uses an invalid opcode to revert (consuming all remaining gas).\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The divisor cannot be zero.\r\n     */\r\n    function div(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        return div(a, b, 'SafeMath: division by zero');\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\r\n     * division by zero. The result is rounded towards zero.\r\n     *\r\n     * Counterpart to Solidity's `/` operator. Note: this function uses a\r\n     * `revert` opcode (which leaves remaining gas untouched) while Solidity\r\n     * uses an invalid opcode to revert (consuming all remaining gas).\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The divisor cannot be zero.\r\n     */\r\n    function div(\r\n        uint256 a,\r\n        uint256 b,\r\n        string memory errorMessage\r\n    ) internal pure returns (uint256) {\r\n        require(b > 0, errorMessage);\r\n        uint256 c = a / b;\r\n        // assert(a == b * c + a % b); // There is no case in which this doesn't hold\r\n\r\n        return c;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\r\n     * Reverts when dividing by zero.\r\n     *\r\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\r\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\r\n     * invalid opcode to revert (consuming all remaining gas).\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The divisor cannot be zero.\r\n     */\r\n    function mod(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        return mod(a, b, 'SafeMath: modulo by zero');\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\r\n     * Reverts with custom message when dividing by zero.\r\n     *\r\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\r\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\r\n     * invalid opcode to revert (consuming all remaining gas).\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - The divisor cannot be zero.\r\n     */\r\n    function mod(\r\n        uint256 a,\r\n        uint256 b,\r\n        string memory errorMessage\r\n    ) internal pure returns (uint256) {\r\n        require(b != 0, errorMessage);\r\n        return a % b;\r\n    }\r\n\r\n    function min(uint256 x, uint256 y) internal pure returns (uint256 z) {\r\n        z = x < y ? x : y;\r\n    }\r\n\r\n    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)\r\n    function sqrt(uint256 y) internal pure returns (uint256 z) {\r\n        if (y > 3) {\r\n            z = y;\r\n            uint256 x = y / 2 + 1;\r\n            while (x < z) {\r\n                z = x;\r\n                x = (y / x + x) / 2;\r\n            }\r\n        } else if (y != 0) {\r\n            z = 1;\r\n        }\r\n    }\r\n}\r\n\r\n// \r\n/**\r\n * @dev Collection of functions related to the address type\r\n */\r\nlibrary Address {\r\n    /**\r\n     * @dev Returns true if `account` is a contract.\r\n     *\r\n     * [IMPORTANT]\r\n     * ====\r\n     * It is unsafe to assume that an address for which this function returns\r\n     * false is an externally-owned account (EOA) and not a contract.\r\n     *\r\n     * Among others, `isContract` will return false for the following\r\n     * types of addresses:\r\n     *\r\n     *  - an externally-owned account\r\n     *  - a contract in construction\r\n     *  - an address where a contract will be created\r\n     *  - an address where a contract lived, but was destroyed\r\n     * ====\r\n     */\r\n    function isContract(address account) internal view returns (bool) {\r\n        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts\r\n        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned\r\n        // for accounts without code, i.e. `keccak256('')`\r\n        bytes32 codehash;\r\n        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;\r\n        // solhint-disable-next-line no-inline-assembly\r\n        assembly {\r\n            codehash := extcodehash(account)\r\n        }\r\n        return (codehash != accountHash && codehash != 0x0);\r\n    }\r\n\r\n    /**\r\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\r\n     * `recipient`, forwarding all available gas and reverting on errors.\r\n     *\r\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\r\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\r\n     * imposed by `transfer`, making them unable to receive funds via\r\n     * `transfer`. {sendValue} removes this limitation.\r\n     *\r\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\r\n     *\r\n     * IMPORTANT: because control is transferred to `recipient`, care must be\r\n     * taken to not create reentrancy vulnerabilities. Consider using\r\n     * {ReentrancyGuard} or the\r\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\r\n     */\r\n    function sendValue(address payable recipient, uint256 amount) internal {\r\n        require(address(this).balance >= amount, 'Address: insufficient balance');\r\n\r\n        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\r\n        (bool success, ) = recipient.call{value: amount}('');\r\n        require(success, 'Address: unable to send value, recipient may have reverted');\r\n    }\r\n\r\n    /**\r\n     * @dev Performs a Solidity function call using a low level `call`. A\r\n     * plain`call` is an unsafe replacement for a function call: use this\r\n     * function instead.\r\n     *\r\n     * If `target` reverts with a revert reason, it is bubbled up by this\r\n     * function (like regular Solidity function calls).\r\n     *\r\n     * Returns the raw returned data. To convert to the expected return value,\r\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `target` must be a contract.\r\n     * - calling `target` with `data` must not revert.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\r\n        return functionCall(target, data, 'Address: low-level call failed');\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\r\n     * `errorMessage` as a fallback revert reason when `target` reverts.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCall(\r\n        address target,\r\n        bytes memory data,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        return _functionCallWithValue(target, data, 0, errorMessage);\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\r\n     * but also transferring `value` wei to `target`.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - the calling contract must have an ETH balance of at least `value`.\r\n     * - the called Solidity function must be `payable`.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCallWithValue(\r\n        address target,\r\n        bytes memory data,\r\n        uint256 value\r\n    ) internal returns (bytes memory) {\r\n        return functionCallWithValue(target, data, value, 'Address: low-level call with value failed');\r\n    }\r\n\r\n    /**\r\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\r\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\r\n     *\r\n     * _Available since v3.1._\r\n     */\r\n    function functionCallWithValue(\r\n        address target,\r\n        bytes memory data,\r\n        uint256 value,\r\n        string memory errorMessage\r\n    ) internal returns (bytes memory) {\r\n        require(address(this).balance >= value, 'Address: insufficient balance for call');\r\n        return _functionCallWithValue(target, data, value, errorMessage);\r\n    }\r\n\r\n    function _functionCallWithValue(\r\n        address target,\r\n        bytes memory data,\r\n        uint256 weiValue,\r\n        string memory errorMessage\r\n    ) private returns (bytes memory) {\r\n        require(isContract(target), 'Address: call to non-contract');\r\n\r\n        // solhint-disable-next-line avoid-low-level-calls\r\n        (bool success, bytes memory returndata) = target.call{value: weiValue}(data);\r\n        if (success) {\r\n            return returndata;\r\n        } else {\r\n            // Look for revert reason and bubble it up if present\r\n            if (returndata.length > 0) {\r\n                // The easiest way to bubble the revert reason is using memory via assembly\r\n\r\n                // solhint-disable-next-line no-inline-assembly\r\n                assembly {\r\n                    let returndata_size := mload(returndata)\r\n                    revert(add(32, returndata), returndata_size)\r\n                }\r\n            } else {\r\n                revert(errorMessage);\r\n            }\r\n        }\r\n    }\r\n}\r\n\r\n// \r\n/**\r\n * @dev Implementation of the {IBEP20} interface.\r\n *\r\n * This implementation is agnostic to the way tokens are created. This means\r\n * that a supply mechanism has to be added in a derived contract using {_mint}.\r\n * For a generic mechanism see {BEP20PresetMinterPauser}.\r\n *\r\n * TIP: For a detailed writeup see our guide\r\n * https://forum.zeppelin.solutions/t/how-to-implement-BEP20-supply-mechanisms/226[How\r\n * to implement supply mechanisms].\r\n *\r\n * We have followed general OpenZeppelin guidelines: functions revert instead\r\n * of returning `false` on failure. This behavior is nonetheless conventional\r\n * and does not conflict with the expectations of BEP20 applications.\r\n *\r\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\r\n * This allows applications to reconstruct the allowance for all accounts just\r\n * by listening to said events. Other implementations of the EIP may not emit\r\n * these events, as it isn't required by the specification.\r\n *\r\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\r\n * functions have been added to mitigate the well-known issues around setting\r\n * allowances. See {IBEP20-approve}.\r\n */\r\ncontract BEP20 is Context, IBEP20, Ownable {\r\n    using SafeMath for uint256;\r\n    using Address for address;\r\n\r\n    mapping(address => uint256) private _balances;\r\n\r\n    mapping(address => mapping(address => uint256)) private _allowances;\r\n\r\n    uint256 private _totalSupply;\r\n\r\n    string private _name;\r\n    string private _symbol;\r\n    uint8 private _decimals;\r\n\r\n    /**\r\n     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\r\n     * a default value of 18.\r\n     *\r\n     * To select a different value for {decimals}, use {_setupDecimals}.\r\n     *\r\n     * All three of these values are immutable: they can only be set once during\r\n     * construction.\r\n     */\r\n    constructor(string memory name, string memory symbol) public {\r\n        _name = name;\r\n        _symbol = symbol;\r\n        _decimals = 18;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the bep token owner.\r\n     */\r\n    function getOwner() external override view returns (address) {\r\n        return owner();\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the token name.\r\n     */\r\n    function name() public override view returns (string memory) {\r\n        return _name;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the token decimals.\r\n     */\r\n    function decimals() public override view returns (uint8) {\r\n        return _decimals;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns the token symbol.\r\n     */\r\n    function symbol() public override view returns (string memory) {\r\n        return _symbol;\r\n    }\r\n\r\n    /**\r\n     * @dev See {BEP20-totalSupply}.\r\n     */\r\n    function totalSupply() public override view returns (uint256) {\r\n        return _totalSupply;\r\n    }\r\n\r\n    /**\r\n     * @dev See {BEP20-balanceOf}.\r\n     */\r\n    function balanceOf(address account) public override view returns (uint256) {\r\n        return _balances[account];\r\n    }\r\n\r\n    /**\r\n     * @dev See {BEP20-transfer}.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `recipient` cannot be the zero address.\r\n     * - the caller must have a balance of at least `amount`.\r\n     */\r\n    function transfer(address recipient, uint256 amount) public override returns (bool) {\r\n        _transfer(_msgSender(), recipient, amount);\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev See {BEP20-allowance}.\r\n     */\r\n    function allowance(address owner, address spender) public override view returns (uint256) {\r\n        return _allowances[owner][spender];\r\n    }\r\n\r\n    /**\r\n     * @dev See {BEP20-approve}.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `spender` cannot be the zero address.\r\n     */\r\n    function approve(address spender, uint256 amount) public override returns (bool) {\r\n        _approve(_msgSender(), spender, amount);\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev See {BEP20-transferFrom}.\r\n     *\r\n     * Emits an {Approval} event indicating the updated allowance. This is not\r\n     * required by the EIP. See the note at the beginning of {BEP20};\r\n     *\r\n     * Requirements:\r\n     * - `sender` and `recipient` cannot be the zero address.\r\n     * - `sender` must have a balance of at least `amount`.\r\n     * - the caller must have allowance for `sender`'s tokens of at least\r\n     * `amount`.\r\n     */\r\n    function transferFrom(\r\n        address sender,\r\n        address recipient,\r\n        uint256 amount\r\n    ) public override returns (bool) {\r\n        _transfer(sender, recipient, amount);\r\n        _approve(\r\n            sender,\r\n            _msgSender(),\r\n            _allowances[sender][_msgSender()].sub(amount, 'BEP20: transfer amount exceeds allowance')\r\n        );\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev Atomically increases the allowance granted to `spender` by the caller.\r\n     *\r\n     * This is an alternative to {approve} that can be used as a mitigation for\r\n     * problems described in {BEP20-approve}.\r\n     *\r\n     * Emits an {Approval} event indicating the updated allowance.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `spender` cannot be the zero address.\r\n     */\r\n    function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {\r\n        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev Atomically decreases the allowance granted to `spender` by the caller.\r\n     *\r\n     * This is an alternative to {approve} that can be used as a mitigation for\r\n     * problems described in {BEP20-approve}.\r\n     *\r\n     * Emits an {Approval} event indicating the updated allowance.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `spender` cannot be the zero address.\r\n     * - `spender` must have allowance for the caller of at least\r\n     * `subtractedValue`.\r\n     */\r\n    function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {\r\n        _approve(\r\n            _msgSender(),\r\n            spender,\r\n            _allowances[_msgSender()][spender].sub(subtractedValue, 'BEP20: decreased allowance below zero')\r\n        );\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev Creates `amount` tokens and assigns them to `msg.sender`, increasing\r\n     * the total supply.\r\n     *\r\n     * Requirements\r\n     *\r\n     * - `msg.sender` must be the token owner\r\n     */\r\n    function mint(uint256 amount) public onlyOwner returns (bool) {\r\n        _mint(_msgSender(), amount);\r\n        return true;\r\n    }\r\n\r\n    /**\r\n     * @dev Moves tokens `amount` from `sender` to `recipient`.\r\n     *\r\n     * This is internal function is equivalent to {transfer}, and can be used to\r\n     * e.g. implement automatic token fees, slashing mechanisms, etc.\r\n     *\r\n     * Emits a {Transfer} event.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `sender` cannot be the zero address.\r\n     * - `recipient` cannot be the zero address.\r\n     * - `sender` must have a balance of at least `amount`.\r\n     */\r\n    function _transfer(\r\n        address sender,\r\n        address recipient,\r\n        uint256 amount\r\n    ) internal {\r\n        require(sender != address(0), 'BEP20: transfer from the zero address');\r\n        require(recipient != address(0), 'BEP20: transfer to the zero address');\r\n\r\n        _balances[sender] = _balances[sender].sub(amount, 'BEP20: transfer amount exceeds balance');\r\n        _balances[recipient] = _balances[recipient].add(amount);\r\n        emit Transfer(sender, recipient, amount);\r\n    }\r\n\r\n    /** @dev Creates `amount` tokens and assigns them to `account`, increasing\r\n     * the total supply.\r\n     *\r\n     * Emits a {Transfer} event with `from` set to the zero address.\r\n     *\r\n     * Requirements\r\n     *\r\n     * - `to` cannot be the zero address.\r\n     */\r\n    function _mint(address account, uint256 amount) internal {\r\n        require(account != address(0), 'BEP20: mint to the zero address');\r\n\r\n        _totalSupply = _totalSupply.add(amount);\r\n        _balances[account] = _balances[account].add(amount);\r\n        emit Transfer(address(0), account, amount);\r\n    }\r\n\r\n    /**\r\n     * @dev Destroys `amount` tokens from `account`, reducing the\r\n     * total supply.\r\n     *\r\n     * Emits a {Transfer} event with `to` set to the zero address.\r\n     *\r\n     * Requirements\r\n     *\r\n     * - `account` cannot be the zero address.\r\n     * - `account` must have at least `amount` tokens.\r\n     */\r\n    function _burn(address account, uint256 amount) internal {\r\n        require(account != address(0), 'BEP20: burn from the zero address');\r\n\r\n        _balances[account] = _balances[account].sub(amount, 'BEP20: burn amount exceeds balance');\r\n        _totalSupply = _totalSupply.sub(amount);\r\n        emit Transfer(account, address(0), amount);\r\n    }\r\n\r\n    /**\r\n     * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.\r\n     *\r\n     * This is internal function is equivalent to `approve`, and can be used to\r\n     * e.g. set automatic allowances for certain subsystems, etc.\r\n     *\r\n     * Emits an {Approval} event.\r\n     *\r\n     * Requirements:\r\n     *\r\n     * - `owner` cannot be the zero address.\r\n     * - `spender` cannot be the zero address.\r\n     */\r\n    function _approve(\r\n        address owner,\r\n        address spender,\r\n        uint256 amount\r\n    ) internal {\r\n        require(owner != address(0), 'BEP20: approve from the zero address');\r\n        require(spender != address(0), 'BEP20: approve to the zero address');\r\n\r\n        _allowances[owner][spender] = amount;\r\n        emit Approval(owner, spender, amount);\r\n    }\r\n\r\n    /**\r\n     * @dev Destroys `amount` tokens from `account`.`amount` is then deducted\r\n     * from the caller's allowance.\r\n     *\r\n     * See {_burn} and {_approve}.\r\n     */\r\n    function _burnFrom(address account, uint256 amount) internal {\r\n        _burn(account, amount);\r\n        _approve(\r\n            account,\r\n            _msgSender(),\r\n            _allowances[account][_msgSender()].sub(amount, 'BEP20: burn amount exceeds allowance')\r\n        );\r\n    }\r\n}\r\n\r\n// CakeToken with Governance.\r\ncontract CakeToken is BEP20('PancakeSwap Token', 'Cake') {\r\n    /// @notice Creates `_amount` token to `_to`. Must only be called by the owner (MasterChef).\r\n    function mint(address _to, uint256 _amount) public onlyOwner {\r\n        _mint(_to, _amount);\r\n        _moveDelegates(address(0), _delegates[_to], _amount);\r\n    }\r\n\r\n    // Copied and modified from YAM code:\r\n    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernanceStorage.sol\r\n    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernance.sol\r\n    // Which is copied and modified from COMPOUND:\r\n    // https://github.com/compound-finance/compound-protocol/blob/master/contracts/Governance/Comp.sol\r\n\r\n    /// @notice A record of each accounts delegate\r\n    mapping (address => address) internal _delegates;\r\n\r\n    /// @notice A checkpoint for marking number of votes from a given block\r\n    struct Checkpoint {\r\n        uint32 fromBlock;\r\n        uint256 votes;\r\n    }\r\n\r\n    /// @notice A record of votes checkpoints for each account, by index\r\n    mapping (address => mapping (uint32 => Checkpoint)) public checkpoints;\r\n\r\n    /// @notice The number of checkpoints for each account\r\n    mapping (address => uint32) public numCheckpoints;\r\n\r\n    /// @notice The EIP-712 typehash for the contract's domain\r\n    bytes32 public constant DOMAIN_TYPEHASH = keccak256(\"EIP712Domain(string name,uint256 chainId,address verifyingContract)\");\r\n\r\n    /// @notice The EIP-712 typehash for the delegation struct used by the contract\r\n    bytes32 public constant DELEGATION_TYPEHASH = keccak256(\"Delegation(address delegatee,uint256 nonce,uint256 expiry)\");\r\n\r\n    /// @notice A record of states for signing / validating signatures\r\n    mapping (address => uint) public nonces;\r\n\r\n      /// @notice An event thats emitted when an account changes its delegate\r\n    event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);\r\n\r\n    /// @notice An event thats emitted when a delegate account's vote balance changes\r\n    event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance);\r\n\r\n    /**\r\n     * @notice Delegate votes from `msg.sender` to `delegatee`\r\n     * @param delegator The address to get delegatee for\r\n     */\r\n    function delegates(address delegator)\r\n        external\r\n        view\r\n        returns (address)\r\n    {\r\n        return _delegates[delegator];\r\n    }\r\n\r\n   /**\r\n    * @notice Delegate votes from `msg.sender` to `delegatee`\r\n    * @param delegatee The address to delegate votes to\r\n    */\r\n    function delegate(address delegatee) external {\r\n        return _delegate(msg.sender, delegatee);\r\n    }\r\n\r\n    /**\r\n     * @notice Delegates votes from signatory to `delegatee`\r\n     * @param delegatee The address to delegate votes to\r\n     * @param nonce The contract state required to match the signature\r\n     * @param expiry The time at which to expire the signature\r\n     * @param v The recovery byte of the signature\r\n     * @param r Half of the ECDSA signature pair\r\n     * @param s Half of the ECDSA signature pair\r\n     */\r\n    function delegateBySig(\r\n        address delegatee,\r\n        uint nonce,\r\n        uint expiry,\r\n        uint8 v,\r\n        bytes32 r,\r\n        bytes32 s\r\n    )\r\n        external\r\n    {\r\n        bytes32 domainSeparator = keccak256(\r\n            abi.encode(\r\n                DOMAIN_TYPEHASH,\r\n                keccak256(bytes(name())),\r\n                getChainId(),\r\n                address(this)\r\n            )\r\n        );\r\n\r\n        bytes32 structHash = keccak256(\r\n            abi.encode(\r\n                DELEGATION_TYPEHASH,\r\n                delegatee,\r\n                nonce,\r\n                expiry\r\n            )\r\n        );\r\n\r\n        bytes32 digest = keccak256(\r\n            abi.encodePacked(\r\n                \"\\x19\\x01\",\r\n                domainSeparator,\r\n                structHash\r\n            )\r\n        );\r\n\r\n        address signatory = ecrecover(digest, v, r, s);\r\n        require(signatory != address(0), \"CAKE::delegateBySig: invalid signature\");\r\n        require(nonce == nonces[signatory]++, \"CAKE::delegateBySig: invalid nonce\");\r\n        require(now <= expiry, \"CAKE::delegateBySig: signature expired\");\r\n        return _delegate(signatory, delegatee);\r\n    }\r\n\r\n    /**\r\n     * @notice Gets the current votes balance for `account`\r\n     * @param account The address to get votes balance\r\n     * @return The number of current votes for `account`\r\n     */\r\n    function getCurrentVotes(address account)\r\n        external\r\n        view\r\n        returns (uint256)\r\n    {\r\n        uint32 nCheckpoints = numCheckpoints[account];\r\n        return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0;\r\n    }\r\n\r\n    /**\r\n     * @notice Determine the prior number of votes for an account as of a block number\r\n     * @dev Block number must be a finalized block or else this function will revert to prevent misinformation.\r\n     * @param account The address of the account to check\r\n     * @param blockNumber The block number to get the vote balance at\r\n     * @return The number of votes the account had as of the given block\r\n     */\r\n    function getPriorVotes(address account, uint blockNumber)\r\n        external\r\n        view\r\n        returns (uint256)\r\n    {\r\n        require(blockNumber < block.number, \"CAKE::getPriorVotes: not yet determined\");\r\n\r\n        uint32 nCheckpoints = numCheckpoints[account];\r\n        if (nCheckpoints == 0) {\r\n            return 0;\r\n        }\r\n\r\n        // First check most recent balance\r\n        if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {\r\n            return checkpoints[account][nCheckpoints - 1].votes;\r\n        }\r\n\r\n        // Next check implicit zero balance\r\n        if (checkpoints[account][0].fromBlock > blockNumber) {\r\n            return 0;\r\n        }\r\n\r\n        uint32 lower = 0;\r\n        uint32 upper = nCheckpoints - 1;\r\n        while (upper > lower) {\r\n            uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow\r\n            Checkpoint memory cp = checkpoints[account][center];\r\n            if (cp.fromBlock == blockNumber) {\r\n                return cp.votes;\r\n            } else if (cp.fromBlock < blockNumber) {\r\n                lower = center;\r\n            } else {\r\n                upper = center - 1;\r\n            }\r\n        }\r\n        return checkpoints[account][lower].votes;\r\n    }\r\n\r\n    function _delegate(address delegator, address delegatee)\r\n        internal\r\n    {\r\n        address currentDelegate = _delegates[delegator];\r\n        uint256 delegatorBalance = balanceOf(delegator); // balance of underlying CAKEs (not scaled);\r\n        _delegates[delegator] = delegatee;\r\n\r\n        emit DelegateChanged(delegator, currentDelegate, delegatee);\r\n\r\n        _moveDelegates(currentDelegate, delegatee, delegatorBalance);\r\n    }\r\n\r\n    function _moveDelegates(address srcRep, address dstRep, uint256 amount) internal {\r\n        if (srcRep != dstRep && amount > 0) {\r\n            if (srcRep != address(0)) {\r\n                // decrease old representative\r\n                uint32 srcRepNum = numCheckpoints[srcRep];\r\n                uint256 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0;\r\n                uint256 srcRepNew = srcRepOld.sub(amount);\r\n                _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew);\r\n            }\r\n\r\n            if (dstRep != address(0)) {\r\n                // increase new representative\r\n                uint32 dstRepNum = numCheckpoints[dstRep];\r\n                uint256 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0;\r\n                uint256 dstRepNew = dstRepOld.add(amount);\r\n                _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew);\r\n            }\r\n        }\r\n    }\r\n\r\n    function _writeCheckpoint(\r\n        address delegatee,\r\n        uint32 nCheckpoints,\r\n        uint256 oldVotes,\r\n        uint256 newVotes\r\n    )\r\n        internal\r\n    {\r\n        uint32 blockNumber = safe32(block.number, \"CAKE::_writeCheckpoint: block number exceeds 32 bits\");\r\n\r\n        if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) {\r\n            checkpoints[delegatee][nCheckpoints - 1].votes = newVotes;\r\n        } else {\r\n            checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes);\r\n            numCheckpoints[delegatee] = nCheckpoints + 1;\r\n        }\r\n\r\n        emit DelegateVotesChanged(delegatee, oldVotes, newVotes);\r\n    }\r\n\r\n    function safe32(uint n, string memory errorMessage) internal pure returns (uint32) {\r\n        require(n < 2**32, errorMessage);\r\n        return uint32(n);\r\n    }\r\n\r\n    function getChainId() internal pure returns (uint) {\r\n        uint256 chainId;\r\n        assembly { chainId := chainid() }\r\n        return chainId;\r\n    }\r\n}",
         "ABI":"[{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"delegator\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"fromDelegate\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"toDelegate\",\"type\":\"address\"}],\"name\":\"DelegateChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"delegate\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"previousBalance\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"newBalance\",\"type\":\"uint256\"}],\"name\":\"DelegateVotesChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"DELEGATION_TYPEHASH\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"DOMAIN_TYPEHASH\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"}],\"name\":\"allowance\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"}],\"name\":\"checkpoints\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"fromBlock\",\"type\":\"uint32\"},{\"internalType\":\"uint256\",\"name\":\"votes\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"subtractedValue\",\"type\":\"uint256\"}],\"name\":\"decreaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"delegatee\",\"type\":\"address\"}],\"name\":\"delegate\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"delegatee\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"nonce\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"expiry\",\"type\":\"uint256\"},{\"internalType\":\"uint8\",\"name\":\"v\",\"type\":\"uint8\"},{\"internalType\":\"bytes32\",\"name\":\"r\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"s\",\"type\":\"bytes32\"}],\"name\":\"delegateBySig\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"delegator\",\"type\":\"address\"}],\"name\":\"delegates\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"getCurrentVotes\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getOwner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"blockNumber\",\"type\":\"uint256\"}],\"name\":\"getPriorVotes\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"addedValue\",\"type\":\"uint256\"}],\"name\":\"increaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_amount\",\"type\":\"uint256\"}],\"name\":\"mint\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"mint\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"nonces\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"numCheckpoints\",\"outputs\":[{\"internalType\":\"uint32\",\"name\":\"\",\"type\":\"uint32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"recipient\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]",
         "ContractName":"CakeToken",
         "CompilerVersion":"v0.6.12+commit.27d51765",
         "OptimizationUsed":"1",
         "Runs":"5000",
         "ConstructorArguments":"",
         "EVMVersion":"Default",
         "Library":"",
         "LicenseType":"None",
         "Proxy":"0",
         "Implementation":"",
         "SwarmSource":"ipfs://9755240809e31aec9fa5790314682233ca431b7c4f252d7e4bba347e2e742086"
      }
   ]
}