// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC165.sol"; import "./IERC721.sol"; /// @title EIP-721 Metadata Update Extension interface IERC4906 is IERC165, IERC721 { /// @dev This event emits when the metadata of a token is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFT. event MetadataUpdate(uint256 _tokenId); /// @dev This event emits when the metadata of a range of tokens is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFTs. event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId); }