fn choose_primary_worker(
workers: &[WorkerPlacementState],
threshold_ms: u64,
start_worker: usize,
) -> Result<MediaWorkerId, RoomJoinError>fn choose_primary_worker(
workers: &[WorkerPlacementState],
threshold_ms: u64,
start_worker: usize,
) -> Result<MediaWorkerId, RoomJoinError>