[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

pytorch_lightning/core/hooks.py

@@ -19,8 +19,8 @@
 from torch.optim.optimizer import Optimizer
 
 from pytorch_lightning.utilities import move_data_to_device
-from pytorch_lightning.utilities.warnings import rank_zero_deprecation, rank_zero_warn
 from pytorch_lightning.utilities.types import EVAL_DATALOADERS, STEP_OUTPUT, TRAIN_DATALOADERS
+from pytorch_lightning.utilities.warnings import rank_zero_deprecation, rank_zero_warn
 
 
 class ModelHooks: