aave-protocol-v2/contracts/interfaces/IPriceOracle.sol

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// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.6.8;
/************
@title IPriceOracle interface
@notice Interface for the Aave price oracle.*/
interface IPriceOracle {
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/***********
@dev returns the asset price in ETH
*/
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function getAssetPrice(address _asset) external view returns (uint256);
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/***********
@dev sets the asset price, in wei
*/
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function setAssetPrice(address _asset, uint256 _price) external;
}