code: func (tab *Table) copyLiveNodes() {
  	tab.mutex.Lock()
  	defer tab.mutex.Unlock()
  
  	now := time.Now()
  	for _, b := range &tab.buckets {
  		for _, n := range b.entries {
  			if n.livenessChecks > 0 && now.Sub(n.addedAt) >= seedMinTableTime {
  				tab.db.UpdateNode(unwrapNode(n))
  			}
  		}
  	}
  }
docs: // copyLiveNodes adds nodes from the table to the database if they have been in the table
  // longer then minTableTime.