// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

interface IDecimalAggregator {
  function latestAnswer() external view returns (int256);

  function latestRound() external view returns (uint256);

  function latestTimestamp() external view returns (uint256);

  function getAnswer(
    uint256 roundId
  ) external view returns (int256);

  function getTimestamp(
    uint256 roundId
  ) external view returns (uint256);

  function decimals() external view returns (uint8);

  function getRoundData(
    uint80 _roundId
  ) external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);

  function latestRoundData()
    external
    view
    returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);

  event AnswerUpdated(int256 indexed current, uint256 indexed roundId, uint256 updatedAt);

  event NewRound(uint256 indexed roundId, address indexed startedBy, uint256 startedAt);
}