def get_label(self, lang='en'):
        """
        Returns the label for a certain language
        :param lang:
        :type lang: str
        :return: returns the label in the specified language, an empty string if the label does not exist
        """
        if self.fast_run:
            return list(self.fast_run_container.get_language_data(self.wd_item_id, lang, 'label'))[0]
        try:
            return self.wd_json_representation['labels'][lang]['value']
        except KeyError:
            return ''
Returns the label for a certain language
        :param lang:
        :type lang: str
        :return: returns the label in the specified language, an empty string if the label does not exist