'The parsed URL parameters (the part in the URL after the question
mark).
By default an
:class:`~werkzeug.datastructures.ImmutableMultiDict`
is returned from this function.  This can be changed by setting
:attr:`parameter_storage_class` to a different type.  This might
be necessary if the order of the form data is important.'

@cached_property
def args(self):

    return url_decode(wsgi_get_bytes(self.environ.get('QUERY_STRING', '')), self.url_charset, errors=self.encoding_errors, cls=self.parameter_storage_class)
