placeholder pep484 job to help with CI

Change-Id: I4912e54324790add7d4214579ccb5f8665011999

Author: zzzeek

tox.ini

@@ -34,3 +34,9 @@ deps=
 commands =
     flake8 ./mako/ ./test/ setup.py --exclude test/templates,test/foo  {posargs}
     black --check .
+
+
+[testenv:pep484]
+basepython = python3
+deps=
+commands = python -c "print('pep484 is not yet implemented for this project')"