def METHOD_NAME(self, lang, is_):
    code = textwrap.dedent(f"""\
        letters is a, b, c
        if letters {is_} '10' print 'wrong!'""")
    self.multi_level_tester(
        lang=lang,
        code=code,
        max_level=7,
        exception=hedy.exceptions.InvalidArgumentTypeException,
        extra_check_function=self.exception_command(is_)
    )