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

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

Author: pre-commit-ci[bot]

parcels/tools/warnings.py

@@ -1,4 +1,4 @@
-__all__ = ['FieldSetWarning', 'FileWarning', 'KernelWarning']
+__all__ = ["FieldSetWarning", "FileWarning", "KernelWarning"]
 
 
 class FieldSetWarning(UserWarning):
@@ -7,16 +7,18 @@ class FieldSetWarning(UserWarning):
     These warnings are often caused by issues in the input data dimensions
     or options selected when loading data into a FieldSet.
     """
+
     pass
 
 
 class FileWarning(UserWarning):
     """Warning that is raised when there are issues with input or output files.
 
     These warnings can be related to file chunking, naming, or decoding issues.
-    Chunking issues in particular may negatively impact performance 
+    Chunking issues in particular may negatively impact performance
     (see also https://docs.oceanparcels.org/en/latest/examples/documentation_MPI.html#Chunking-the-FieldSet-with-dask)
     """
+
     pass
 
 
@@ -26,4 +28,5 @@ class KernelWarning(RuntimeWarning):
     These warnings often result from issues in the FieldSet or user-defined Kernel
     that are passed into the Parcels Kernel loop.
     """
+
     pass