code: def tearDown(self):
      shutdown_ray()
      # todo: move these to relational apis as well
      execute_query_fetch_all(
          self.evadb, """DROP TABLE IF EXISTS mnist_video;"""
      )
      execute_query_fetch_all(
          self.evadb, """DROP TABLE IF EXISTS meme_images;"""
      )
      execute_query_fetch_all(
          self.evadb, """DROP TABLE IF EXISTS dummy_table;"""
      )
  
imports: import unittest
  from test.markers import qdrant_skip_marker
  from test.util import DummyObjectDetector, create_sample_video, load_functions_for_testing, shutdown_ray, suffix_pytest_xdist_worker_id_to_dir
  import numpy
  import pandas
  from pandas.testing import assert_frame_equal
  from evadb.binder.binder_utils import BinderError
  from evadb.configuration.constants import DEFAULT_DOCUMENT_CHUNK_OVERLAP, DEFAULT_DOCUMENT_CHUNK_SIZE, EvaDB_DATABASE_DIR, EvaDB_ROOT_DIR
  from evadb.executor.executor_utils import ExecutorError
  from evadb.interfaces.relational.db import connect
  from evadb.models.storage.batch import Batch
  from evadb.server.command_handler import execute_query_fetch_all
label_desc: Use image node_id 4 for calling the RelationalAPI obj's underlying member method code with example usage: obj.tearDown() without return types