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

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raven/utilities/geoserver.py

@@ -12,6 +12,7 @@
 For example, many function's logic essentially consists in creating the layer name.
 We could have a function that returns the layer name, and then other functions expect the layer name.
 """
+
 import inspect
 import json
 import os

raven/utilities/io.py

@@ -1,4 +1,5 @@
 """Tools for reading and writing geospatial data formats."""
+
 import logging
 import os
 import tarfile

raven/utilities/testdata.py

@@ -1,4 +1,5 @@
 """Tools for searching for and acquiring test data."""
+
 import hashlib
 import logging
 import os