stacktach-simport/tests/external/externalmodule.py

class Foo(object):
    def method_a(self, a, b, c, d):
        pass


class Blah(Foo):
    def method_a(self, a, b, c, d):
        pass

    def method_b(self, a, b, c, e):
        pass


def function_a(a, b, c, d):
    pass