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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def send_mfg_inspector_data(inspector_proto, credentials, destination_url):
 """Upload MfgEvent to steam_engine."""

  envelope = guzzle_pb2.TestRunEnvelope()
  envelope.payload = zlib.compress(inspector_proto.SerializeToString())
  envelope.payload_type = guzzle_pb2.COMPRESSED_MFG_EVENT
  envelope_data = envelope.SerializeToString()

  for _ in xrange(5):
    try:
      result = _send_mfg_inspector_request(
          envelope_data, credentials, destination_url)
      return result
    except UploadFailedError:
      time.sleep(1)

  logging.critical(
      'Could not upload to mfg-inspector after 5 attempts. Giving up.')

  return {}