class_docstr: Mirrors the magic tests in TestOptsMagic
code: def tearDown(self):
      Store.current_backend = self.backend
      Store.options(val=self.store_copy)
      Store._custom_options = {
          k: {} for k in Store._custom_options.keys()
      }
      super().tearDown()
  
imports: from unittest import SkipTest
  from pyviz_comms import CommManager
  from holoviews import Store, notebook_extension
  from holoviews.core.options import OptionTree
  from holoviews.element.comparison import ComparisonTestCase
  from holoviews.plotting import bokeh, mpl
  from holoviews.util import Options, OutputSettings, opts, output
  from ..utils import LoggingComparisonTestCase
label_desc: Use image node_id 2 for calling the TestOptsUtil obj's underlying member method code with example usage: obj.tearDown() without return types