class_docstr: Simple class to encapsulate the mocked lookup table results
code: def get_mock_values(cls):
      for key, value in cls._MOCKS.items():
          driver = EphemeralDriver(None)
          driver._cache = value  # pylint: disable=protected-access
          yield LookupTable(key, driver, None)
  
file_path: streamalert/streamalert_cli/test/mocks.py
imports: from streamalert.shared.logger import get_logger
  from streamalert.shared.lookup_tables.drivers import EphemeralDriver
  from streamalert.shared.lookup_tables.table import LookupTable
label_desc: Use image node_id 2 for calling the LookupTableMocks obj's underlying member method code with example usage: obj.get_mock_values(cls) without return types