def test_bool(self):
        prio_set_list = event._PrioritizedSetList()

        assert bool(prio_set_list) is False

        prio_set_list.add(0, None)
        assert bool(prio_set_list) is True
def gettext(self, text: str, lang: str = None):
        """
        Singular translations
        """

        if lang is None:
            lang = self.context_lang.get()

        if lang not in self.translations:
            return text

        translator = self.translations[lang]
        return translator.gettext(text)