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

// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.6.8;

/**
* @title IPriceOracleGetter interface
* @notice Interface for the Aave price oracle.
**/

interface IPriceOracleGetter {
    /**
    * @dev returns the asset price in ETH
    * @param _asset the address of the asset
    * @return the ETH price of the asset
    **/
    function getAssetPrice(address _asset) external view returns (uint256);
}