pub fn keyed_counter_service_buggy<'a, L: Location<'a> + NoTick, O: Ordering>(
increment_requests: KeyedStream<u32, String, L, Unbounded, O>,
get_requests: KeyedStream<u32, String, L, Unbounded, O>,
) -> (KeyedStream<u32, String, L, Unbounded, O>, KeyedStream<u32, (String, usize), L, Unbounded, NoOrder>)