  (
    roundId,
    rawPrice,
    ,
    updateTime,
    answeredInRound
  ) = AggregatorV3Interface(XXXXX).latestRoundData();
  require(rawPrice > 0, "Chainlink price <= 0");
  require(updateTime != 0, "Incomplete round");
  require(answeredInRound >= roundId, "Stale price");
