Method add_callback

src/transformers/trainer.py:4373–4382

Add a callback to the current list of [`~transformers.TrainerCallback`]. Args: callback (`type` or [`~transformers.TrainerCallback]`): A [`~transformers.TrainerCallback`] class or an instance of a [`~transformers.TrainerCallback`]. In the fi

(self, callback: type[TrainerCallback] | TrainerCallback)

    # ---- Callbacks ----

    def add_callback(self, callback: type[TrainerCallback] | TrainerCallback) -> None:
        """
        Add a callback to the current list of [`~transformers.TrainerCallback`].

        Args:
           callback (`type` or [`~transformers.TrainerCallback]`):
               A [`~transformers.TrainerCallback`] class or an instance of a [`~transformers.TrainerCallback`]. In the
               first case, will instantiate a member of that class.
        """
        self.callback_handler.add_callback(callback)

    def pop_callback(self, callback: type[TrainerCallback] | TrainerCallback) -> TrainerCallback | None:
        """