code: func (s *Restore) ConfigEntry(c structs.ConfigEntry) error {
  	// Insert
  	if err := s.tx.Insert(configTableName, c); err != nil {
  		return fmt.Errorf("failed restoring config entry object: %s", err)
  	}
  	if err := indexUpdateMaxTxn(s.tx, c.GetRaftIndex().ModifyIndex, configTableName); err != nil {
  		return fmt.Errorf("failed updating index: %s", err)
  	}
  
  	return nil
  }
docs: // ConfigEntry is used when restoring from a snapshot.