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

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Author: pre-commit-ci[bot]

tests/validation/test_check_for_nans.py

@@ -1,12 +1,15 @@
-from ocf_datapipes.validation import CheckNaNs
-import pytest
 import numpy as np
+import pytest
+
+from ocf_datapipes.validation import CheckNaNs
+
 
 def test_check_nans_fail_dataarray(topo_dp):
     topo_dp = CheckNaNs(topo_dp)
     with pytest.raises(Exception):
         next(iter(topo_dp))
 
+
 def test_check_nans_fill(topo_dp):
     topo_dp = CheckNaNs(topo_dp, fill_nans=True)
     data = next(iter(topo_dp))