interface IERC721Metadata {
    /**
     * @dev Gets the token name
     * @return string representing the token name
     */
    function name() external view returns (string memory);

    /**
     * @dev Gets the token symbol
     * @return string representing the token symbol
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns an URI for a given token ID
     * Throws if the token ID does not exist. May return an empty string.
     * @param tokenId uint256 ID of the token to query
     * @return string URI of given token ID
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}
/**
 * @title ERC721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 * Note: The ERC-165 identifier for this interface is 0x5b5e139f.
 */
function symbol() external view returns (string memory);
/**
 * @dev Gets the token symbol
 * @return string representing the token symbol
 */