// SPDX-License-Identifier: MIT // OpenZeppelin Tron Contracts (last updated v5.4.0) (interfaces/ITRC4906.sol) pragma solidity >=0.6.2; import {ITRC165} from "./ITRC165.sol"; import {ITRC721} from "./ITRC721.sol"; /// @title TRC-721 Metadata Update Extension interface ITRC4906 is ITRC165, ITRC721 { /// @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); }