Celo Epoch Data is now available on Celo Explorer! READ MORE

Contract Address Details

0xCdFE9be8Ae17Fb9269668b49b1f57eb26D0fCc87

Contract Name
UniswapV2Pair
Creator
0x62d5b8–c25fae at 0xaaacc2–3ca1e1
Balance
0 CELO ( )
Tokens
Fetching tokens...
Transactions
0 Transactions
Transfers
0 Transfers
Gas Used
Fetching gas used...
Last Balance Update
15696743
This contract has been verified via Sourcify. View contract in Sourcify repository
Contract name:
UniswapV2Pair




Optimization enabled
true
Compiler version
v0.6.12+commit.27d51765




Optimization runs
5000
EVM Version
istanbul




Verified at
2022-09-22T09:10:46.661522Z

contracts/UniswapV2Pair.sol

// SPDX-License-Identifier: MIT

pragma solidity =0.6.12;

import './UniswapV2ERC20.sol';
import './libraries/Math.sol';
import './libraries/UQ112x112.sol';
import './interfaces/IERC20.sol';
import './interfaces/IUniswapV2Factory.sol';
import './interfaces/IUniswapV2Callee.sol';


contract UniswapV2Pair is UniswapV2ERC20 {
    using SafeMathUniswap  for uint;
    using UQ112x112 for uint224;

    uint public constant MINIMUM_LIQUIDITY = 10**3;
    bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));

    address public factory;
    address public token0;
    address public token1;

    uint112 private reserve0;           // uses single storage slot, accessible via getReserves
    uint112 private reserve1;           // uses single storage slot, accessible via getReserves
    uint32  private blockTimestampLast; // uses single storage slot, accessible via getReserves

    uint public price0CumulativeLast;
    uint public price1CumulativeLast;
    uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event

    uint private unlocked = 1;
    modifier lock() {
        require(unlocked == 1, 'UniswapV2: LOCKED');
        unlocked = 0;
        _;
        unlocked = 1;
    }

    function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
        _reserve0 = reserve0;
        _reserve1 = reserve1;
        _blockTimestampLast = blockTimestampLast;
    }

    function _safeTransfer(address token, address to, uint value) private {
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
    }

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    constructor() public {
        factory = msg.sender;
    }

    // called once by the factory at time of deployment
    function initialize(address _token0, address _token1) external {
        require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
        token0 = _token0;
        token1 = _token1;
    }

    // update reserves and, on the first call per block, price accumulators
    function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
        require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
        uint32 blockTimestamp = uint32(block.timestamp % 2**32);
        uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
        if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
            // * never overflows, and + overflow is desired
            price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
            price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
        }
        reserve0 = uint112(balance0);
        reserve1 = uint112(balance1);
        blockTimestampLast = blockTimestamp;
        emit Sync(reserve0, reserve1);
    }

    // if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
    function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
        address feeTo = IUniswapV2Factory(factory).feeTo();
        feeOn = feeTo != address(0);
        uint _kLast = kLast; // gas savings
        if (feeOn) {
            if (_kLast != 0) {
                uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
                uint rootKLast = Math.sqrt(_kLast);
                if (rootK > rootKLast) {
                    uint numerator = totalSupply.mul(rootK.sub(rootKLast));
                    uint denominator = rootK.mul(5).add(rootKLast);
                    uint liquidity = numerator / denominator;
                    if (liquidity > 0) _mint(feeTo, liquidity);
                }
            }
        } else if (_kLast != 0) {
            kLast = 0;
        }
    }

    // this low-level function should be called from a contract which performs important safety checks
    function mint(address to) external lock returns (uint liquidity) {
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        uint balance0 = IERC20Uniswap(token0).balanceOf(address(this));
        uint balance1 = IERC20Uniswap(token1).balanceOf(address(this));
        uint amount0 = balance0.sub(_reserve0);
        uint amount1 = balance1.sub(_reserve1);

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        if (_totalSupply == 0) {
            liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
            _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
        } else {
            liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
        }
        require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
        _mint(to, liquidity);

        _update(balance0, balance1, _reserve0, _reserve1);
        if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
        emit Mint(msg.sender, amount0, amount1);
    }

    // this low-level function should be called from a contract which performs important safety checks
    function burn(address to) external lock returns (uint amount0, uint amount1) {
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        address _token0 = token0;                                // gas savings
        address _token1 = token1;                                // gas savings
        uint balance0 = IERC20Uniswap(_token0).balanceOf(address(this));
        uint balance1 = IERC20Uniswap(_token1).balanceOf(address(this));
        uint liquidity = balanceOf[address(this)];

        bool feeOn = _mintFee(_reserve0, _reserve1);
        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
        amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
        amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
        require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
        _burn(address(this), liquidity);
        _safeTransfer(_token0, to, amount0);
        _safeTransfer(_token1, to, amount1);
        balance0 = IERC20Uniswap(_token0).balanceOf(address(this));
        balance1 = IERC20Uniswap(_token1).balanceOf(address(this));

        _update(balance0, balance1, _reserve0, _reserve1);
        if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
        emit Burn(msg.sender, amount0, amount1, to);
    }

    // this low-level function should be called from a contract which performs important safety checks
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
        require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
        require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');

        uint balance0;
        uint balance1;
        { // scope for _token{0,1}, avoids stack too deep errors
        address _token0 = token0;
        address _token1 = token1;
        require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
        if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
        if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
        if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
        balance0 = IERC20Uniswap(_token0).balanceOf(address(this));
        balance1 = IERC20Uniswap(_token1).balanceOf(address(this));
        }
        uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
        uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
        require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
        { // scope for reserve{0,1}Adjusted, avoids stack too deep errors
        uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
        uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
        require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
        }

        _update(balance0, balance1, _reserve0, _reserve1);
        emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
    }

    // force balances to match reserves
    function skim(address to) external lock {
        address _token0 = token0; // gas savings
        address _token1 = token1; // gas savings
        _safeTransfer(_token0, to, IERC20Uniswap(_token0).balanceOf(address(this)).sub(reserve0));
        _safeTransfer(_token1, to, IERC20Uniswap(_token1).balanceOf(address(this)).sub(reserve1));
    }

    // force reserves to match balances
    function sync() external lock {
        _update(IERC20Uniswap(token0).balanceOf(address(this)), IERC20Uniswap(token1).balanceOf(address(this)), reserve0, reserve1);
    }
}
        

/contracts/UniswapV2ERC20.sol

// SPDX-License-Identifier: MIT

pragma solidity =0.6.12;

import './libraries/SafeMath.sol';

contract UniswapV2ERC20 {
    using SafeMathUniswap for uint;

    string public constant name = 'Ubeswap LP Token';
    string public constant symbol = 'ULP';
    uint8 public constant decimals = 18;
    uint  public totalSupply;
    mapping(address => uint) public balanceOf;
    mapping(address => mapping(address => uint)) public allowance;

    bytes32 public DOMAIN_SEPARATOR;
    // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
    mapping(address => uint) public nonces;

    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    constructor() public {
        uint chainId;
        assembly {
            chainId := chainid()
        }
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
                keccak256(bytes(name)),
                keccak256(bytes('1')),
                chainId,
                address(this)
            )
        );
    }

    function _mint(address to, uint value) internal {
        totalSupply = totalSupply.add(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(address(0), to, value);
    }

    function _burn(address from, uint value) internal {
        balanceOf[from] = balanceOf[from].sub(value);
        totalSupply = totalSupply.sub(value);
        emit Transfer(from, address(0), value);
    }

    function _approve(address owner, address spender, uint value) private {
        allowance[owner][spender] = value;
        emit Approval(owner, spender, value);
    }

    function _transfer(address from, address to, uint value) private {
        balanceOf[from] = balanceOf[from].sub(value);
        balanceOf[to] = balanceOf[to].add(value);
        emit Transfer(from, to, value);
    }

    function approve(address spender, uint value) external returns (bool) {
        _approve(msg.sender, spender, value);
        return true;
    }

    function transfer(address to, uint value) external returns (bool) {
        _transfer(msg.sender, to, value);
        return true;
    }

    function transferFrom(address from, address to, uint value) external returns (bool) {
        if (allowance[from][msg.sender] != uint(-1)) {
            allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
        }
        _transfer(from, to, value);
        return true;
    }

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
        require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
        bytes32 digest = keccak256(
            abi.encodePacked(
                '\x19\x01',
                DOMAIN_SEPARATOR,
                keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
            )
        );
        address recoveredAddress = ecrecover(digest, v, r, s);
        require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
        _approve(owner, spender, value);
    }
}
          

/contracts/interfaces/IERC20.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface IERC20Uniswap {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}
          

/contracts/interfaces/IUniswapV2Callee.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface IUniswapV2Callee {
    function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
          

/contracts/interfaces/IUniswapV2Factory.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}
          

/contracts/libraries/Math.sol

// SPDX-License-Identifier: MIT

pragma solidity =0.6.12;

// a library for performing various math operations

library Math {
    function min(uint x, uint y) internal pure returns (uint z) {
        z = x < y ? x : y;
    }

    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
    function sqrt(uint y) internal pure returns (uint z) {
        if (y > 3) {
            z = y;
            uint x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
}
          

/contracts/libraries/SafeMath.sol

// SPDX-License-Identifier: MIT

pragma solidity =0.6.12;

// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)

library SafeMathUniswap {
    function add(uint x, uint y) internal pure returns (uint z) {
        require((z = x + y) >= x, 'ds-math-add-overflow');
    }

    function sub(uint x, uint y) internal pure returns (uint z) {
        require((z = x - y) <= x, 'ds-math-sub-underflow');
    }

    function mul(uint x, uint y) internal pure returns (uint z) {
        require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
    }
}
          

/contracts/libraries/UQ112x112.sol

// SPDX-License-Identifier: MIT

pragma solidity =0.6.12;

// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))

// range: [0, 2**112 - 1]
// resolution: 1 / 2**112

library UQ112x112 {
    uint224 constant Q112 = 2**112;

    // encode a uint112 as a UQ112x112
    function encode(uint112 y) internal pure returns (uint224 z) {
        z = uint224(y) * Q112; // never overflows
    }

    // divide a UQ112x112 by a uint112, returning a UQ112x112
    function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
        z = x / uint224(y);
    }
}
          

Contract ABI

[{"type":"constructor","stateMutability":"nonpayable","inputs":[]},{"type":"event","name":"Approval","inputs":[{"type":"address","name":"owner","internalType":"address","indexed":true},{"type":"address","name":"spender","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Burn","inputs":[{"type":"address","name":"sender","internalType":"address","indexed":true},{"type":"uint256","name":"amount0","internalType":"uint256","indexed":false},{"type":"uint256","name":"amount1","internalType":"uint256","indexed":false},{"type":"address","name":"to","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"Mint","inputs":[{"type":"address","name":"sender","internalType":"address","indexed":true},{"type":"uint256","name":"amount0","internalType":"uint256","indexed":false},{"type":"uint256","name":"amount1","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Swap","inputs":[{"type":"address","name":"sender","internalType":"address","indexed":true},{"type":"uint256","name":"amount0In","internalType":"uint256","indexed":false},{"type":"uint256","name":"amount1In","internalType":"uint256","indexed":false},{"type":"uint256","name":"amount0Out","internalType":"uint256","indexed":false},{"type":"uint256","name":"amount1Out","internalType":"uint256","indexed":false},{"type":"address","name":"to","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"Sync","inputs":[{"type":"uint112","name":"reserve0","internalType":"uint112","indexed":false},{"type":"uint112","name":"reserve1","internalType":"uint112","indexed":false}],"anonymous":false},{"type":"event","name":"Transfer","inputs":[{"type":"address","name":"from","internalType":"address","indexed":true},{"type":"address","name":"to","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"DOMAIN_SEPARATOR","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"MINIMUM_LIQUIDITY","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"PERMIT_TYPEHASH","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"allowance","inputs":[{"type":"address","name":"","internalType":"address"},{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"approve","inputs":[{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"balanceOf","inputs":[{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"amount0","internalType":"uint256"},{"type":"uint256","name":"amount1","internalType":"uint256"}],"name":"burn","inputs":[{"type":"address","name":"to","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint8","name":"","internalType":"uint8"}],"name":"decimals","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"factory","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint112","name":"_reserve0","internalType":"uint112"},{"type":"uint112","name":"_reserve1","internalType":"uint112"},{"type":"uint32","name":"_blockTimestampLast","internalType":"uint32"}],"name":"getReserves","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"initialize","inputs":[{"type":"address","name":"_token0","internalType":"address"},{"type":"address","name":"_token1","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"kLast","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"liquidity","internalType":"uint256"}],"name":"mint","inputs":[{"type":"address","name":"to","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"string","name":"","internalType":"string"}],"name":"name","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"nonces","inputs":[{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"permit","inputs":[{"type":"address","name":"owner","internalType":"address"},{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"uint256","name":"deadline","internalType":"uint256"},{"type":"uint8","name":"v","internalType":"uint8"},{"type":"bytes32","name":"r","internalType":"bytes32"},{"type":"bytes32","name":"s","internalType":"bytes32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"price0CumulativeLast","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"price1CumulativeLast","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"skim","inputs":[{"type":"address","name":"to","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"swap","inputs":[{"type":"uint256","name":"amount0Out","internalType":"uint256"},{"type":"uint256","name":"amount1Out","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"bytes","name":"data","internalType":"bytes"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"string","name":"","internalType":"string"}],"name":"symbol","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"sync","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"token0","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"token1","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalSupply","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"transfer","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"transferFrom","inputs":[{"type":"address","name":"from","internalType":"address"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"}]}]
            

Deployed ByteCode

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