code: def tearDown(self):
      shutdown_ray()
      self._drop_table_in_native_database()
      self._drop_table_in_evadb_database()
  
imports: import unittest
  from test.util import get_evadb_for_testing, shutdown_ray
  import pytest
  from evadb.executor.executor_utils import ExecutorError
  from evadb.server.command_handler import execute_query_fetch_all
label_desc: Use image node_id 2 for calling the NativeExecutorTest obj's underlying member method code with example usage: obj.tearDown() without return types