func (i *memDbIter) Next() error {
	if i.reverse {
		i.iter.Prev()
	} else {
		i.iter.Next()
	}
	return nil
}
// Next implements the Iterator Next.
Next implements the Iterator Next.
// Next implements the Iterator Next .
func (i *memDbIter) Next() error {
	if i.reverse {
		i.iter.Prev()
	} else {
		i.iter.Next()
	}
	return nil
}
func ( i * memDbIter ) Next ( ) error { if i . reverse { i . iter . Prev ( ) } else { i . iter . Next ( ) } return nil }
Next implements the Iterator Next.
Next implements the Iterator Next .