code: def test_is_date(self):
      data = [("a", 1), ("a", 2)]
      cursor_descr = (("a", "string"), ("a", "string"))
      results = SupersetResultSet(data, cursor_descr, BaseEngineSpec)
      self.assertEqual(results.is_temporal("DATE"), True)
      self.assertEqual(results.is_temporal("DATETIME"), True)
      self.assertEqual(results.is_temporal("TIME"), True)
      self.assertEqual(results.is_temporal("TIMESTAMP"), True)
      self.assertEqual(results.is_temporal("STRING"), False)
      self.assertEqual(results.is_temporal(""), False)
      self.assertEqual(results.is_temporal(None), False)
  
imports: from datetime import datetime
  import tests.integration_tests.test_app
  from superset.dataframe import df_to_records
  from superset.db_engine_specs import BaseEngineSpec
  from superset.result_set import dedup, SupersetResultSet
  from superset.utils.core import GenericDataType
  from .base_tests import SupersetTestCase
label_desc: Use image node_id 5 for calling the TestSupersetResultSet obj's underlying member method code with example usage: obj.test_is_date() without return types