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

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

Author: pre-commit-ci[bot]

src/pytorch_lightning/core/module.py

@@ -18,6 +18,7 @@
 import numbers
 import os
 import tempfile
+import warnings
 import weakref
 from contextlib import contextmanager
 from pathlib import Path
@@ -48,7 +49,6 @@
 from pytorch_lightning.utilities.signature_utils import is_param_in_hook_signature
 from pytorch_lightning.utilities.types import _METRIC_COLLECTION, EPOCH_OUTPUT, LRSchedulerTypeUnion, STEP_OUTPUT
 from pytorch_lightning.utilities.warnings import WarningCache
-import warnings
 
 warning_cache = WarningCache()
 log = logging.getLogger(__name__)