Surround top-level function and class definitions with two blank lines.

test/integration/targets/async/library/async_test.py

@@ -39,4 +39,5 @@ def main():
         if 'trailing_junk' in fail_mode:
             print("trailing junk after module output")
 
+
 main()

test/integration/targets/async_fail/library/async_test.py

@@ -46,4 +46,5 @@ def main():
         if 'trailing_junk' in fail_mode:
             print("trailing junk after module output")
 
+
 main()

test/integration/targets/var_precedence/ansible-var-precedence-check.py

@@ -536,5 +536,6 @@ def main():
             shutil.rmtree(TESTDIR)
             index += 1
 
+
 if __name__ == "__main__":
     main()