class_docstr: Registers fake backends with the Store to test options on.
class_docstr_tok: ["Registers","fake","backends","with","the","Store","to","test","options","on","."]
code: def tearDown(self):
      super().tearDown()
      Store._weakrefs = {}
      Store._options.pop("backend_1")
      Store._options.pop("backend_2")
      Store._custom_options.pop("backend_1")
      Store._custom_options.pop("backend_2")
      Store.set_current_backend(self.current_backend)
      Store.renderers.pop("backend_1")
      Store.renderers.pop("backend_2")
  
imports: import gc
  from holoviews.core.element import Element
  from holoviews.core.options import Keywords, Options, OptionTree, Store
  from holoviews.core.spaces import HoloMap
  from ..utils import LoggingComparisonTestCase
label_desc: Use image node_id 2 for calling the CustomBackendTestCase obj's underlying member method code with example usage: obj.tearDown() without return types