How to Specify language to use for geocoding?

 
    add_filter( 'job_manager_geolocation_endpoint', 'change_geocode_lang' );
function change_geocode_lang( $endpoint ) {
  // Use language from https://developers.google.com/maps/faq#using-google-maps-apis
  return add_query_arg( 'language', 'en-GB', $endpoint );
}