def _searchable_form(self) -> 'Language':
        """
        Convert a parsed language tag so that the information it contains is in
        the best form for looking up information in the CLDR.
        """
        if self._searchable is not None:
            return self._searchable

        self._searchable = self._filter_attributes(
            {'language', 'script', 'region'}
        ).simplify_script().prefer_macrolanguage()
        return self._searchable
def _searchable_form ( self ) -> 'Language' : if self . _searchable is not None : return self . _searchable self . _searchable = self . _filter_attributes ( { 'language' , 'script' , 'region' } ) . simplify_script ( ) . prefer_macrolanguage ( ) return self . _searchable
Convert a parsed language tag so that the information it contains is in
        the best form for looking up information in the CLDR.