<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _fetch_partition_state(self, topic_id, partition_id):
 """Fetch partition-state for given topic-partition."""

        state_path = "/brokers/topics/{topic_id}/partitions/{p_id}/state"
        try:
            partition_state = self.get(
                state_path.format(topic_id=topic_id, p_id=partition_id),
            )
            return partition_state
        except NoNodeError:
            return {}