let current_seen_timestamp_object: SystemTime = current_row.get("seen");
let current_seen_timestamp: u32 = current_seen_timestamp_object.duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs() as u32;
if current_seen_timestamp > last_sync_timestamp {
// the newer of the two oldest seen directional updates came after last sync timestamp
let current_seen_timestamp_object: SystemTime = current_row.get("seen");
let current_seen_timestamp: u32 = current_seen_timestamp_object.duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs() as u32;
if current_seen_timestamp > last_sync_timestamp {
// the newer of the two oldest seen directional updates came after last sync timestamp