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22 lines
757 B
22 lines
757 B
pragma solidity ^0.5.0;
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/**
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* @dev Interface of the ERC165 standard, as defined in the
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* [EIP](https://eips.ethereum.org/EIPS/eip-165).
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*
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* Implementers can declare support of contract interfaces, which can then be
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* queried by others (`ERC165Checker`).
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*
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* For an implementation, see `ERC165`.
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*/
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interface IERC165 {
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/**
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* @dev Returns true if this contract implements the interface defined by
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* `interfaceId`. See the corresponding
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* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
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* to learn more about how these ids are created.
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*
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* This function call must use less than 30 000 gas.
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*/
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function supportsInterface(bytes4 interfaceId) external view returns (bool);
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}
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