def isSet(self):
    for langId in self._possible_keys:
        if ((langId in self._content) and (self.get(langId) not in (None, ''))):
            return True
    return False
def isSet(self):
    for langId in self._possible_keys:
        if ((langId in self._content) and (self.get(langId) not in (None, ))):
            return True
    return False