def __check_arg(self, verses):
        """Verify that the argument given to check_text is valid."""
        if len(verses) != len(self.__verses):
            return False
        for verse in verses:
            if not isinstance(verse, str):
                return False
        return True
Verify that the argument given to check_text is valid.
recipes/Python/577046_Bible_Verse_Quiz__statepy/recipe-577046.py