log_info!(logger, "announcement channel count: {}", delta_set.len());
lookup::fetch_channel_updates(&mut delta_set, &client, last_sync_timestamp, logger.clone()).await;
log_info!(logger, "update-fetched channel count: {}", delta_set.len());
log_info!(logger, "announcement channel count: {}", delta_set.len());
lookup::fetch_channel_updates(&mut delta_set, &client, last_sync_timestamp, logger.clone()).await;
log_info!(logger, "update-fetched channel count: {}", delta_set.len());