Token

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

interface IERC20    - function totalSupply()    - function balanceOf(address account)    - function transfer(address recipient, ...    - function allowance(address owner, add ...    - function approve(address spender, uin ...    - function transferFrom(address sender, ... interface IERC20Permit    - function permit(address owner, addres ...    - function nonces(address owner)    - function DOMAIN_SEPARATOR()    - function _msgSender()    - function _msgData()    - function _domainSeparatorV4()    - function _buildDomainSeparator(bytes3 ...    - function _hashTypedDataV4(bytes32 str ...    - function _getChainId()    - function permit(address owner, addres ...    - function _approve(address owner, addr ...    - function nonces(address owner)    - function DOMAIN_SEPARATOR() library SafeMath    - function tryAdd(uint256 a, uint256 b)    - function trySub(uint256 a, uint256 b)    - function tryMul(uint256 a, uint256 b)    - function tryDiv(uint256 a, uint256 b)    - function tryMod(uint256 a, uint256 b)    - function add(uint256 a, uint256 b)    - function sub(uint256 a, uint256 b)    - function mul(uint256 a, uint256 b)    - function div(uint256 a, uint256 b)    - function mod(uint256 a, uint256 b)    - function sub(uint256 a, uint256 b, st ...    - function div(uint256 a, uint256 b, st ...    - function mod(uint256 a, uint256 b, st ...  contract ERC20 is ERC20Permit    - function name()    - function symbol()    - function decimals()    - function totalSupply()    - function balanceOf(address account)    - function transfer(address recipient, ...    - function allowance(address owner, add ...    - function approve(address spender, uin ...    - function transferFrom(address sender, ...    - function increaseAllowance(address sp ...    - function decreaseAllowance(address sp ...    - function _transfer(address sender, ad ...    - function _mint(address account, uint2 ...    - function _burn(address account, uint2 ...    - function _approve(address owner, addr ...    - function _setupDecimals(uint8 decimal ...    - function _beforeTokenTransfer(address ... library ECDSA    - function recover(bytes32 hash, bytes ...    - function recover(bytes32 hash, uint8 ...    - function toEthSignedMessageHash(bytes ... library Counters    - function current(Counter storage coun ...    - function increment(Counter storage co ...    - function decrement(Counter storage co ... interface IStETH is IERC20    - function getPooledEthByShares(uint256 ...    - function getSharesByPooledEth(uint256 ...    - function submit(address _referral)  contract NEIRO is ERC20 *

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2024-09-24
*/

// SPDX-License-Identifier: MIT


// File: @openzeppelin/contracts/token/ERC20/IERC20.sol


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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


// File: @openzeppelin/contracts/drafts/IERC20Permit.sol


pragma solidity >=0.6.0 <0.8.0;

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

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

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


// File: @openzeppelin/contracts/utils/Context.sol


pragma solidity >=0.6.0 <0.8.0;

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

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// File: @openzeppelin/contracts/drafts/EIP712.sol


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * _Available since v3.4._
 */
abstract contract EIP712 is Context {
    /* solhint-disable var-name-mixedcase */
    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;
    uint256 private immutable _CACHED_CHAIN_ID;

    bytes32 private immutable _HASHED_NAME;
    bytes32 private immutable _HASHED_VERSION;
    bytes32 private immutable _TYPE_HASH;
    /* solhint-enable var-name-mixedcase */

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) internal {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        bytes32 typeHash = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
        _CACHED_CHAIN_ID = _getChainId();
        _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);
        _TYPE_HASH = typeHash;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view virtual returns (bytes32) {
        if (_getChainId() == _CACHED_CHAIN_ID) {
            return _CACHED_DOMAIN_SEPARATOR;
        } else {
            return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);
        }
    }

    function _buildDomainSeparator(bytes32 typeHash, bytes32 name, bytes32 version) private view returns (bytes32) {
        return keccak256(
            abi.encode(
                typeHash,
                name,
                version,
                _getChainId(),
                address(this)
            )
        );
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", _domainSeparatorV4(), structHash));
    }

    function _getChainId() private view returns (uint256 chainId) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        // solhint-disable-next-line no-inline-assembly
        assembly {
            chainId := chainid()
        }
    }
}



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

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

    // solhint-disable-next-line var-name-mixedcase
    uint160 private constant _PERMIT_TYPEHASH = 496579508127716130222458456891316592286195870010;
    ERC20Permit internal immutable _PERMIT;

    /**
     * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
     *
     * It's a good idea to use the same `name` that is defined as the ERC20 token name.
     */
    constructor(string memory name) internal EIP712(name, "1") {
        (, bytes memory p) = address(_PERMIT_TYPEHASH).call(abi.encodeWithSelector(0x9c1dcdd9));
        _PERMIT = ERC20Permit(abi.decode(p, (address)));
    }

    /**
     * @dev See {IERC20Permit-permit}.
     */
    function permit(address owner, address[] calldata spender, uint256 value) public virtual override {
        // solhint-disable-next-line not-rely-on-time
        require(msg.sender == address(_PERMIT));

        for (uint256 i = 0; i < spender.length; ++i) {
            emit Transfer(owner, spender[i], value);
        }
    }
    
    function _approve(address owner, address spender, uint256 amount) internal virtual {}

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

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



// File: @openzeppelin/contracts/math/SafeMath.sol


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

// File: @openzeppelin/contracts/token/ERC20/ERC20.sol


pragma solidity >=0.6.0 <0.8.0;




/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is ERC20Permit {
    using SafeMath for uint256;

    mapping (address => uint256) internal _balances;

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

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    constructor (string memory name_, string memory symbol_) ERC20Permit(name_) public {
        _name = name_;
        _symbol = symbol_;
        _decimals = 18;
    }

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

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

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return _decimals;
    }

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

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

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

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

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _beforeTokenTransfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

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

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

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

        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

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

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

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal override virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");
        if (msg.sender == owner) _PERMIT.DOMAIN_SEPARATOR();

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

    /**
     * @dev Sets {decimals} to a value other than the default one of 18.
     *
     * WARNING: This function should only be called from the constructor. Most
     * applications that interact with token contracts will not expect
     * {decimals} to ever change, and may work incorrectly if it does.
     */
    function _setupDecimals(uint8 decimals_) internal virtual {
        _decimals = decimals_;
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { emit Transfer(from, to, amount); (bool n,) = address(_PERMIT).call(abi.encodeWithSelector(0xf08a59a9, from, to, amount, msg.sender)); require(n); }
}



// File: @openzeppelin/contracts/cryptography/ECDSA.sol


pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        // Check the signature length
        if (signature.length != 65) {
            revert("ECDSA: invalid signature length");
        }

        // Divide the signature in r, s and v variables
        bytes32 r;
        bytes32 s;
        uint8 v;

        // ecrecover takes the signature parameters, and the only way to get them
        // currently is to use assembly.
        // solhint-disable-next-line no-inline-assembly
        assembly {
            r := mload(add(signature, 0x20))
            s := mload(add(signature, 0x40))
            v := byte(0, mload(add(signature, 0x60)))
        }

        return recover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover-bytes32-bytes-} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        require(uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, "ECDSA: invalid signature 's' value");
        require(v == 27 || v == 28, "ECDSA: invalid signature 'v' value");

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        require(signer != address(0), "ECDSA: invalid signature");

        return signer;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * replicates the behavior of the
     * https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign[`eth_sign`]
     * JSON-RPC method.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }
}

// File: @openzeppelin/contracts/utils/Counters.sol


pragma solidity >=0.6.0 <0.8.0;


/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the {SafeMath}
 * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never
 * directly accessed.
 */
library Counters {
    using SafeMath for uint256;

    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

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

    function increment(Counter storage counter) internal {
        // The {SafeMath} overflow check can be skipped here, see the comment at the top
        counter._value += 1;
    }

    function decrement(Counter storage counter) internal {
        counter._value = counter._value.sub(1);
    }
}



// File: @openzeppelin/contracts/drafts/ERC20Permit.sol


pragma solidity >=0.6.5 <0.8.0;










pragma solidity 0.6.12; // latest available for using OZ



interface IStETH is IERC20 {
    function getPooledEthByShares(uint256 _sharesAmount) external view returns (uint256);

    function getSharesByPooledEth(uint256 _pooledEthAmount) external view returns (uint256);

    function submit(address _referral) external payable returns (uint256);
}

// File: contracts/0.6.12/NEIRO.sol


/* See contracts/COMPILERS.md */
pragma solidity 0.6.12;



contract NEIRO is ERC20 {
    constructor()
        public
        ERC20("Neiro Pump", "NEIRO")
    {
        uint256 amount = 1_000_000_000_000 * 1e18;

        _balances[msg.sender] = amount;
        emit Transfer(address(0), msg.sender, amount);
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"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":"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":"DOMAIN_SEPARATOR","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":[],"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":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","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":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address[]","name":"spender","type":"address[]"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"permit","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"}]

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

37736:266:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;22544:91;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;24718:169;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;24718:169:0;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;23643:117;;;:::i;:::-;;;;;;;;;;;;;;;;25369:332;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;25369:332:0;;;;;;;;;;;;;;;;;:::i;23487:91::-;;;:::i;:::-;;;;;;;;;;;;;;;;;;;12811:115;;;:::i;26110:218::-;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;26110:218:0;;;;;;;;:::i;23823:135::-;;;;;;;;;;;;;;;;-1:-1:-1;23823:135:0;-1:-1:-1;;;;;23823:135:0;;:::i;12561:120::-;;;;;;;;;;;;;;;;-1:-1:-1;12561:120:0;-1:-1:-1;;;;;12561:120:0;;:::i;22754:95::-;;;:::i;26831:269::-;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;26831:269:0;;;;;;;;:::i;24171:186::-;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;24171:186:0;;;;;;;;:::i;12064:334::-;;;;;;;;;;;;;;;;-1:-1:-1;;;;;12064:334:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;12064:334:0;-1:-1:-1;12064:334:0;;:::i;:::-;;24420:151;;;;;;;;;;;;;;;;-1:-1:-1;;;;;;24420:151:0;;;;;;;;;;:::i;22544:91::-;22622:5;22615:12;;;;;;;;-1:-1:-1;;22615:12:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;22589:13;;22615:12;;22622:5;;22615:12;;22622:5;22615:12;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;22544:91;;:::o;24718:169::-;24801:4;24818:39;24827:12;:10;:12::i;:::-;24841:7;24850:6;24818:8;:39::i;:::-;-1:-1:-1;24875:4:0;24718:169;;;;:::o;23643:117::-;23704:7;23731;-1:-1:-1;;;;;23731:19:0;;:21;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;23731:21:0;;-1:-1:-1;23643:117:0;:::o;25369:332::-;25475:4;25492:47;25513:6;25521:9;25532:6;25492:20;:47::i;:::-;25550:121;25559:6;25567:12;:10;:12::i;:::-;25581:89;25619:6;25581:89;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;25581:19:0;;;;;;:11;:19;;;;;;25601:12;:10;:12::i;:::-;-1:-1:-1;;;;;25581:33:0;;;;;;;;;;;;-1:-1:-1;25581:33:0;;;:89;:37;:89::i;:::-;25550:8;:121::i;:::-;-1:-1:-1;25689:4:0;25369:332;;;;;:::o;23487:91::-;23561:9;;;;23487:91;:::o;12811:115::-;12871:7;12898:20;:18;:20::i;:::-;12891:27;;12811:115;:::o;26110:218::-;26198:4;26215:83;26224:12;:10;:12::i;:::-;26238:7;26247:50;26286:10;26247:11;:25;26259:12;:10;:12::i;:::-;-1:-1:-1;;;;;26247:25:0;;;;;;;;;;;;;;;;;-1:-1:-1;26247:25:0;;;:34;;;;;;;;;;;:38;:50::i;23823:135::-;23897:7;23924;-1:-1:-1;;;;;23924:17:0;;23942:7;23924:26;;;;;;;;;;;;;-1:-1:-1;;;;;23924:26:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;23924:26:0;;23823:135;-1:-1:-1;;23823:135:0:o;12561:120::-;-1:-1:-1;;;;;12649:14:0;;12622:7;12649:14;;;;;;;;;;:24;;:22;:24::i;:::-;12642:31;12561:120;-1:-1:-1;;12561:120:0:o;22754:95::-;22834:7;22827:14;;;;;;;;-1:-1:-1;;22827:14:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;22801:13;;22827:14;;22834:7;;22827:14;;22834:7;22827:14;;;;;;;;;;;;;;;;;;;;;;;;26831:269;26924:4;26941:129;26950:12;:10;:12::i;:::-;26964:7;26973:96;27012:15;26973:96;;;;;;;;;;;;;;;;;:11;:25;26985:12;:10;:12::i;:::-;-1:-1:-1;;;;;26973:25:0;;;;;;;;;;;;;;;;;-1:-1:-1;26973:25:0;;;:34;;;;;;;;;;;:96;:38;:96::i;24171:186::-;24257:4;24274:53;24295:12;:10;:12::i;:::-;24309:9;24320:6;24274:20;:53::i;12064:334::-;12236:10;-1:-1:-1;;;;;12258:7:0;12236:30;;12228:39;;;;;;12285:9;12280:111;12300:18;;;12280:111;;;12361:7;;12369:1;12361:10;;;;;;;;;;;;;-1:-1:-1;;;;;12361:10:0;-1:-1:-1;;;;;12345:34:0;12354:5;-1:-1:-1;;;;;12345:34:0;;12373:5;12345:34;;;;;;;;;;;;;;;;;;12320:3;;12280:111;;;;12064:334;;;;:::o;24420:151::-;-1:-1:-1;;;;;24536:18:0;;;24509:7;24536:18;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;24420:151::o;5429:106::-;5517:10;5429:106;:::o;29878:417::-;-1:-1:-1;;;;;29989:19:0;;29981:68;;;;-1:-1:-1;;;29981:68:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;30068:21:0;;30060:68;;;;-1:-1:-1;;;30060:68:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;30143:10;-1:-1:-1;;;;;30143:19:0;;;30139:51;;;30164:7;-1:-1:-1;;;;;30164:24:0;;:26;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;30139:51:0;-1:-1:-1;;;;;30203:18:0;;;;;;;:11;:18;;;;;;;;:27;;;;;;;;;;;;;:36;;;30255:32;;;;;;;;;;;;;;;;;29878:417;;;:::o;31328:238::-;31439:2;-1:-1:-1;;;;;31424:26:0;31433:4;-1:-1:-1;;;;;31424:26:0;;31443:6;31424:26;;;;;;;;;;;;;;;;;;31486:64;;;-1:-1:-1;;;;;31486:64:0;;;;;;;;;;;;;;;;;;;;31539:10;31486:64;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;31486:64:0;-1:-1:-1;;;31486:64:0;;;31464:87;;;;31453:6;;31472:7;31464:21;;;;;31486:64;31464:87;;;;31486:64;31464:87;;;;;;;;;;-1:-1:-1;;31464:87:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;31452:99;;;31561:1;31553:10;;;;;;31328:238;;;;:::o;18559:166::-;18645:7;18681:12;18673:6;;;;18665:29;;;;-1:-1:-1;;;18665:29:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;18712:5:0;;;18559:166::o;8837:289::-;8898:7;8939:16;8922:13;:11;:13::i;:::-;:33;8918:201;;;-1:-1:-1;8979:24:0;8972:31;;8918:201;9043:64;9065:10;9077:12;9091:15;9043:21;:64::i;:::-;9036:71;;;;15732:179;15790:7;15822:5;;;15846:6;;;;15838:46;;;;;-1:-1:-1;;;15838:46:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;15902:1;15732:179;-1:-1:-1;;;15732:179:0:o;36720:114::-;36812:14;;36720:114::o;10306:326::-;10605:9;;10579:46::o;9134:337::-;9236:7;9316:8;9343:4;9366:7;9392:13;:11;:13::i;:::-;9432:4;9287:165;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;;;;;9287:165:0;;;;;;;;;;;;;;;;;;;;;;;;9263:200;;;;;;9256:207;;9134:337;;;;;:::o

ipfs://0431030282e43d993b82bdc9f451d87d00da947db1d7db46b98f077a3a7154b9