def METHOD_NAME(self, warnings: "Warnings") -> "Warnings":
    """Add a warning if survey or choices have missing translations."""
    if 0 < len(self.survey.missing) or 0 < len(self.choices.missing):
        msg = format_missing_translations_msg(
            _in={"survey": self.survey.missing, "choices": self.choices.missing}
        )
        if msg is not None:
            warnings.append(msg)
    return warnings