Created
November 30, 2019 23:55
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pragma solidity ^0.4.24; | |
contract ERC721 { | |
event Transfer(address indexed _from, address indexed _to, uint256 _tokenId); | |
event Approval(address indexed _owner, address indexed _approved, uint256 _tokenId); | |
function balanceOf(address _owner) public view returns (uint256 _balance); | |
function ownerOf(uint256 _tokenId) public view returns (address _owner); | |
function transfer(address _to, uint256 _tokenId) public; | |
function approve(address _to, uint256 _tokenId) public; | |
function takeOwnership(uint256 _tokenId) public; | |
} |
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