decode = async rawData => {
  const decoder = new Decoder(rawData)
  const throttleTime = decoder.readInt32()
  const errors = await decoder.readArrayAsync(decodeError)

  return {
    throttleTime,
    errors,
  }
}
AddPartitionsToTxn Response (Version: 0) => throttle_time_ms [errors]
  throttle_time_ms => INT32
  errors => topic [partition_errors]
    topic => STRING
    partition_errors => partition error_code
      partition => INT32
      error_code => INT16