code: def close(self, *args, **kwargs):
      pass
  
file_path: catboost/contrib/python/ipywidgets/py3/ipywidgets/widgets/tests/utils.py
imports: from ipywidgets import Widget
  import ipywidgets.widgets.widget
  import ipykernel.comm
label_desc: Use image node_id 5 for calling the DummyComm obj's underlying member method code with example usage: obj.close() without return types