code: def _safe_call(obj, methname, *args, **kwargs):
      
  
      meth = getattr(obj, methname, None)
      if meth is None or not callable(meth):
          return
  
      return meth(*args, **kwargs)
docs: Safely calls the method with the given methname on the given
      object.  Remaining positional and keyword arguments are passed to
      the method.  The return value is None, if the method is not
      available, or the return value of the method.