code: def test_init_raises_key_error_if_undefined_table_passed(self):
      server, server_address = _create_server(
          table="no_variables_table"
      )
      with self.assertRaises(KeyError):
          reverb_variable_container.ReverbVariableContainer(
              server_address
          )
      server.stop()
  
imports: from typing import Optional, Text, Tuple
  from absl import logging
  from absl.testing import parameterized
  import numpy
  import portpicker
  import reverb
  import tensorflow.compat.v2
  from tf_agents.experimental.distributed import reverb_variable_container
  from tf_agents.system import system_multiprocessing
  from tf_agents.typing import types
  from tf_agents.utils import nest_utils
  from tf_agents.utils import test_utils
label_desc: Use image node_id 3 for calling the ReverbVariableContainerTest obj's underlying member method code with example usage: obj.test_init_raises_key_error_if_undefined_table_passed() without return types