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Guy.sol

// SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
contract MinterYT is ERC721, ERC721Enumerable, ERC721URIStorage {
    using SafeMath for uint256;
    uint public constant mintPrice =0;

    function _beforeTokenTransfer(address from, address to, uint256 tokenId)
        internal
        override(ERC721, ERC721Enumerable)
    {
        super._beforeTokenTransfer(from, to, tokenId);
    }
    function _burn(uint256 tokenId) internal override(ERC721, ERC721URIStorage) {
        super._burn(tokenId);
    }
    function tokenURI(uint256 tokenId)
        public
        view
        override(ERC721, ERC721URIStorage)
        returns (string memory)
    {
        return super.tokenURI(tokenId);
    }
    function supportsInterface(bytes4 interfaceId)
        public
        view
        override(ERC721, ERC721Enumerable)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }
    constructor() ERC721("shr-nft", "shr") {}
    function mint(string memory _uri) public payable {
        uint256 mintIndex = totalSupply();
        _safeMint(msg.sender, mintIndex);
        _setTokenURI(mintIndex, _uri);
    }
}