Instantiates callbacks from config. :param callbacks_cfg: A DictConfig object containing callback configurations. :return: A list of instantiated callbacks.
(callbacks_cfg: DictConfig)
| 13 | |
| 14 | |
| 15 | def instantiate_callbacks(callbacks_cfg: DictConfig) -> List[Callback]: |
| 16 | """Instantiates callbacks from config. |
| 17 | |
| 18 | :param callbacks_cfg: A DictConfig object containing callback configurations. |
| 19 | :return: A list of instantiated callbacks. |
| 20 | """ |
| 21 | callbacks: List[Callback] = [] |
| 22 | |
| 23 | if not callbacks_cfg: |
| 24 | log.warning("No callback configs found! Skipping..") |
| 25 | return callbacks |
| 26 | |
| 27 | if not isinstance(callbacks_cfg, DictConfig): |
| 28 | raise TypeError("Callbacks config must be a DictConfig!") |
| 29 | |
| 30 | for _, cb_conf in callbacks_cfg.items(): |
| 31 | if isinstance(cb_conf, DictConfig) and "_target_" in cb_conf: |
| 32 | log.info(f"Instantiating callback <{cb_conf._target_}>") |
| 33 | callbacks.append(hydra.utils.instantiate(cb_conf)) |
| 34 | |
| 35 | return callbacks |
| 36 | |
| 37 | |
| 38 | def instantiate_loggers(logger_cfg: DictConfig) -> List[Logger]: |