code: def test_query_metrics_empty_query(self):
      q = self.isolated_query_patch()
      trcs = self.repo.query_metrics(
          query=q, report_mode=QueryReportMode.DISABLED
      )
      trace_count = sum(1 for _ in trcs)
      self.assertEqual(40, trace_count)
  
imports: from parameterized import parameterized
  from tests.base import PrefilledDataTestBase
  from tests.utils import full_class_name
  from aim.sdk.types import QueryReportMode
  from aim.storage.query import syntax_error_check
label_desc: Use image node_id 2 for calling the TestQuery obj's underlying member method code with example usage: obj.test_query_metrics_empty_query() without return types