Fix format.

Author: nedtwigg

python/example-pytest-selfie/tests/simple_ondisk_test.py

@@ -1,8 +1,9 @@
 from selfie_lib.Selfie import expect_selfie
 
+
 def test_write():
     expect_selfie("A").to_match_disk()
 
+
 def test_read():
     expect_selfie("B").to_match_disk_TODO()
-