code: def seek(self, partition, offset):
          
          if not isinstance(partition, TopicPartition):
              raise TypeError('partition must be a TopicPartition namedtuple')
          assert isinstance(offset, int) and offset >= 0, 'Offset must be >= 0'
          assert partition in self._subscription.assigned_partitions(), 'Unassigned partition'
          log.debug("Seeking to offset %s for partition %s", offset, partition)
          self._subscription.assignment[partition].seek(offset)
docs: Manually specify the fetch offset for a TopicPartition.
  
          Overrides the fetch offsets that the consumer will use on the next
          :meth:`~kafka.KafkaConsumer.poll`. If this API is invoked for the same
          partition more than once, the latest offset will be used on the next
          :meth:`~kafka.KafkaConsumer.poll`.
  
          Note: You may lose data if this API is arbitrarily used in the middle of
          consumption to reset the fetch offsets.
  
          Arguments:
              partition (TopicPartition): Partition for seek operation
              offset (int): Message offset in partition
  
          Raises:
              AssertionError: If offset is not an int >= 0; or if partition is not
                  currently assigned.