How to use the py3status.parse_config.ConfigParser.ParseEnd function in py3status

def value_assign(self, end_token=None):
        """
        We are expecting a value (literal, list, dict, tuple).
        If end_token then we are inside a list, dict or tuple so we are allow
        newlines and also check for the end token.
        """
        while True:
            token = self.next()
            t_value = token["value"]
            if end_token:
                if t_value == end_token:
                    raise self.ParseEnd()
                elif t_value == "\n":
                    continue
            if token["type"] == "literal":
                return self.make_value(t_value)
            if token["type"] == "function":
                return self.config_function(token)
            elif t_value == "[":
                return self.make_list()
            elif t_value == "{":
                return self.make_dict()
            elif t_value == "(":
                return tuple(self.make_list(end_token=")"))
            else:
                self.error("Value expected", previous=not (end_token))

def dict_key(self):
        """
        Find the next key in a dict.  We skip any newlines and check for if the
        dict has ended.
        """
        while True:
            token = self.next()
            t_value = token["value"]
            if t_value == "\n":
                continue
            if t_value == "}":
                raise self.ParseEnd()
            if token["type"] == "literal":
                return self.make_value(t_value)
            self.error("Invalid Key")

def separator(self, separator=",", end_token=None):
        """
        Read through tokens till the required separator is found.  We ignore
        newlines.  If an end token is supplied raise a ParseEnd exception if it
        is found.
        """
        while True:
            token = self.next()
            t_value = token["value"]
            if end_token and t_value == end_token:
                raise self.ParseEnd()
            if t_value == separator:
                return
            if t_value == "\n":
                continue
            self.error("Unexpected character")