code: def tearDown(self):
      Store.renderers["matplotlib"] = mpl.MPLRenderer.instance()
      Store.renderers["bokeh"] = bokeh.BokehRenderer.instance()
      OutputSettings.options = dict(OutputSettings.defaults.items())
      for renderer in Store.renderers.values():
          renderer.comm_manager = CommManager
      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 TestOutputUtil obj's underlying member method code with example usage: obj.tearDown() without return types