// SPDX-License-Identifier: MIT pragma solidity ^0.7.0; interface ChainlinkRequestInterface { function oracleRequest( address sender, uint256 requestPrice, bytes32 serviceAgreementID, address callbackAddress, bytes4 callbackFunctionId, uint256 nonce, uint256 dataVersion, bytes calldata data ) external; function cancelOracleRequest( bytes32 requestId, uint256 payment, bytes4 callbackFunctionId, uint256 expiration ) external; }