code: def remove_callback(self, name, callback):
          
  
          if self.is_callback_property(name):
              prop = getattr(type(self), name)
              try:
                  prop.remove_callback(self, callback)
              except ValueError:  # pragma: nocover
                  pass  # Be forgiving if callback was already removed before
          else:
              raise TypeError("attribute '{0}' is not a callback property".format(name))
docs: Remove a previously-added callback
  
          Parameters
          ----------
          name : str
              The instance to remove the callback from.
          func : func
              The callback function to remove