code: def __init__(self, msg, original_exception=""):
      super(ConvergenceError, self).__init__(
          msg + "%s" % original_exception
      )
      self.original_exception = original_exception
  
file_path: lifelines/lifelines/exceptions.py
label_desc: Use image node_id 1 to create a new ConvergenceError object from inherited base classes: ValueError with example: obj = ConvergenceError(msg, original_exception)