fn create_route(
route: &RawTransitRoute,
map: &mut Map,
gtfs_to_stop_id: &HashMap<String, TransitStopID>,
snapper: &BorderSnapper
) -> Result<()>
fn create_route(
route: &RawTransitRoute,
map: &mut Map,
gtfs_to_stop_id: &HashMap<String, TransitStopID>,
snapper: &BorderSnapper
) -> Result<()>