Clarify that it's not necessary to subclass from TestCase to create a test case. As Jeremy put it: "subclassing is an implementation technique, not a type declaration".
Clarify that it's not necessary to subclass from TestCase to create a
test case. As Jeremy put it: "subclassing is an implementation
technique, not a type declaration".

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator