[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/trainer/training_loop.py

@@ -23,8 +23,8 @@
 from pytorch_lightning.core.optimizer import LightningOptimizer
 from pytorch_lightning.core.step_result import Result
 from pytorch_lightning.plugins import ParallelPlugin
-from pytorch_lightning.trainer.supporters import TensorRunningAccum
 from pytorch_lightning.trainer.states import TrainerStatus
+from pytorch_lightning.trainer.supporters import TensorRunningAccum
 from pytorch_lightning.utilities import _TPU_AVAILABLE, AMPType, DeviceType
 from pytorch_lightning.utilities.distributed import rank_zero_info
 from pytorch_lightning.utilities.exceptions import MisconfigurationException