code: def tearDownClass(cls):
      shutdown_ray()
      execute_query_fetch_all(
          cls.evadb, "DROP TABLE IF EXISTS MyVideo;"
      )
  
imports: import unittest
  from test.markers import gpu_skip_marker
  from test.util import get_evadb_for_testing, get_physical_query_plan, load_functions_for_testing, shutdown_ray
  import numpy
  import pandas
  import pytest
  from mock import MagicMock, patch
  from evadb.configuration.constants import EvaDB_ROOT_DIR
  from evadb.expression.comparison_expression import ComparisonExpression
  from evadb.models.storage.batch import Batch
  from evadb.optimizer.plan_generator import PlanGenerator
  from evadb.optimizer.rules.rules import PushDownFilterThroughApplyAndMerge, PushDownFilterThroughJoin, ReorderPredicates
  from evadb.optimizer.rules.rules_manager import RulesManager, disable_rules
  from evadb.plan_nodes.predicate_plan import PredicatePlan
  from evadb.server.command_handler import execute_query_fetch_all
  from evadb.utils.stats import Timer
label_desc: Use image node_id 2 for calling the OptimizerRulesTest obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types