code: def set_model(self, model):
          '''
          Set the model to fuzz
  
          :type model: :class:`~kitty.model.high_level.base.BaseModel` or a subclass
          :param model: Model object to fuzz
          '''
          self.model = model
          if self.model:
              self.model.set_notification_handler(self)
              self.handle_stage_changed(model)
          return self set_model(self, model):
          '''
          Set the model to fuzz
  
          :type model: :class:`~kitty.model.high_level.base.BaseModel` or a subclass
          :param model: Model object to fuzz
          '''
          self.model = model
          if self.model:
              self.model.set_notification_handler(self)
              self.handle_stage_changed(model)
          return self
docs: Set the model to fuzz
  
          :type model: :class:`~kitty.model.high_level.base.BaseModel` or a subclass
          :param model: Model object to fuzz