test/: PEP8 compliancy (#24803)

* test/: PEP8 compliancy

- Make PEP8 compliant

* Python3 chokes on casting int to bytes (#24952)

But if we tell the formatter that the var is a number, it works

test/units/modules/network/ios/test_ios_template.py

@@ -26,6 +26,7 @@ from ansible.compat.tests.mock import patch
 from ansible.modules.network.ios import _ios_template
 from .ios_module import TestIosModule, load_fixture, set_module_args
 
+
 class TestIosTemplateModule(TestIosModule):
 
     module = _ios_template