code: def query_plan(self):
          
          plan_entries = self._job_statistics().get("queryPlan", ())
          return [QueryPlanEntry.from_api_repr(entry) for entry in plan_entries]
docs: Return query plan from job statistics, if present.
  
          See:
          https://cloud.google.com/bigquery/docs/reference/rest/v2/jobs#statistics.query.queryPlan
  
          :rtype: list of :class:`QueryPlanEntry`
          :returns: mappings describing the query plan, or an empty list
                    if the query has not yet completed.