// calculate the snapshot
let snapshot = super::serialize_delta(network_graph_clone, current_last_sync_timestamp.clone() as u32, self.logger.clone()).await;
// persist the snapshot and update the symlink
let snapshot_filename = format!("snapshot__calculated-at:{}__range:{}-days__previous-sync:{}.lngossip", reference_timestamp, day_range, current_last_sync_timestamp);
let snapshot_path = format!("{}/{}", pending_snapshot_directory, snapshot_filename);
// calculate the snapshot
let snapshot = super::serialize_delta(network_graph_clone, current_last_sync_timestamp.clone() as u32, self.logger.clone()).await;
// persist the snapshot and update the symlink
let snapshot_filename = format!("snapshot__calculated-at:{}__range:{}-days__previous-sync:{}.lngossip", reference_timestamp, day_range, current_last_sync_timestamp);
let snapshot_path = format!("{}/{}", pending_snapshot_directory, snapshot_filename);