code: func openDBDriver(args ...interface{}) (database.DB, error) {
  	dbPath, network, err := parseArgs("Open", args...)
  	if err != nil {
  		return nil, err
  	}
  
  	return openDB(dbPath, network, false)
  }
docs: // openDBDriver is the callback provided during driver registration that opens
  // an existing database for use.