@lang.setter<EOL><INDENT>def lang(self, language):<DEDENT>
if isinstance(language, str):<EOL><INDENT>self._lang = [language]<EOL><DEDENT>elif isinstance(language, collections.Iterable):<EOL><INDENT>self._lang = list(language)<EOL><DEDENT>if any(lang not in self._supported_langs for lang in self._lang):<EOL><INDENT>raise BadArgumentError("<STR_LIT>")<EOL><DEDENT>
Set lang