class_docstr: HBChannel ABC.
  
  The docstrings for this class can be found in the base implementation:
  
  `jupyter_client.channels.HBChannel`
class_docstr_tok: ["HBChannel","ABC",".","The","docstrings","for","this","class","can","be","found","in","the","base","implementation",":","`","jupyter_client.channels.HBChannel","`"]
code: def is_beating(self):
      pass
  
file_path: catboost/contrib/python/jupyter-client/py2/jupyter_client/channelsabc.py
imports: import abc
  from ipython_genutils.py3compat import with_metaclass
label_desc: Use image node_id 4 for calling the HBChannelABC obj's underlying member method code with example usage: obj.is_beating() without return types