code: func ConnectContext(ctx context.Context, driverName, dataSourceName string) (*DB, error) {
  	db, err := Open(driverName, dataSourceName)
  	if err != nil {
  		return db, err
  	}
  	err = db.PingContext(ctx)
  	return db, err
  }
docs: // ConnectContext to a database and verify with a ping.