code: def _pb_timestamp_to_datetime(timestamp_pb):
      
      return _EPOCH + datetime.timedelta(
          seconds=timestamp_pb.seconds, microseconds=(timestamp_pb.nanos / 1000.0)
      )
docs: Convert a Timestamp protobuf to a datetime object.
  
      :type timestamp_pb: :class:`google.protobuf.timestamp_pb2.Timestamp`
      :param timestamp_pb: A Google returned timestamp protobuf.
  
      :rtype: :class:`datetime.datetime`
      :returns: A UTC datetime object converted from a protobuf timestamp.