decode = async rawData => {
  const decoder = new Decoder(rawData)
  const throttleTime = decoder.readInt32()
  const errorCode = decoder.readInt16()

  failIfVersionNotSupported(errorCode)

  const errorMessage = decoder.readString()
  const coordinator = {
    nodeId: decoder.readInt32(),
    host: decoder.readString(),
    port: decoder.readInt32(),
  }

  return {
    throttleTime,
    errorCode,
    errorMessage,
    coordinator,
  }
}
FindCoordinator Response (Version: 1) => throttle_time_ms error_code error_message coordinator
  throttle_time_ms => INT32
  error_code => INT16
  error_message => NULLABLE_STRING
  coordinator => node_id host port
    node_id => INT32
    host => STRING
    port => INT32