o  i @sddlmZddlZddlmZddlmZmZddlm Z m Z ddl m Z m Z mZmZede jed\ZZer?dd lmZn ede jed d d \ZZGd ddZdS)) annotationsN)Callable) TYPE_CHECKINGAny)ReduceLROnPlateau _LRScheduler) IgniteInfo ensure_tuple min_versionoptional_importz ignite.engineEvents)Enginer decorator)as_typec@s<eZdZdZdddddfdddZdddZdddZdS)LrScheduleHandlerzS Ignite handler to update the Learning Rate based on PyTorch LR scheduler. TNcCsdS)Nr)enginerrd/home/dell461/cl/sdc2/last_ska_mid/HISourceFinder-master-l/src/monai/handlers/lr_schedule_handler.py*szLrScheduleHandler. lr_scheduler _LRScheduler | ReduceLROnPlateauprint_lrboolname str | None epoch_levelstep_transformCallable[[Engine], Any]returnNonecCsL||_||_t||_||_t|stdt|j d||_ ||_ dS)a Args: lr_scheduler: typically, lr_scheduler should be PyTorch lr_scheduler object. If customized version, must have `step` and `get_last_lr` methods. print_lr: whether to print out the latest learning rate with logging. name: identifier of logging.logger to use, if None, defaulting to ``engine.logger``. epoch_level: execute lr_scheduler.step() after every epoch or every iteration. `True` is epoch level, `False` is iteration level. step_transform: a callable that is used to transform the information from `engine` to expected input data of lr_scheduler.step() function if necessary. Raises: TypeError: When ``step_transform`` is not ``callable``. z'step_transform must be callable but is .N) rrlogging getLoggerloggerrcallable TypeErrortype__name__r_name)selfrrrrrrrr__init__$s  zLrScheduleHandler.__init__rr cCs<|jdur |j|_|jr|tj|dS|tj|dS)g Args: engine: Ignite Engine, it can be a trainer, validator or evaluator. N)r(r#radd_event_handlerr EPOCH_COMPLETEDITERATION_COMPLETED)r)rrrrattachEs zLrScheduleHandler.attachcCsBt||}|jj||jr|jd|jjddSdS)r+zCurrent learning rate: rN)r rrsteprr#info_last_lr)r)rargsrrr__call__Qs  zLrScheduleHandler.__call__) rrrrrrrrrrrr)rr rr)r' __module__ __qualname____doc__r*r/r4rrrrrs ! r) __future__rr!collections.abcrtypingrrtorch.optim.lr_schedulerrr monai.utilsrr r r OPT_IMPORT_VERSIONr _ ignite.enginer rrrrrs