// TODO: document internal iterator behaviour
document internal iterator behaviour
// TODO : document internal iterator behaviour
func (t levelTxn) Get(key []byte) ([]byte, error) {
	v, found := t.modified[string(key)]
	if !found {
		return t.iter.get(key)
	}
	if v == nil { 
		return nil, ErrNotFound
	}
	return v, nil
}
func ( t levelTxn ) Get ( key [ ] byte ) ( [ ] byte , error ) { v , found := t . modified [ string ( key ) ] if ! found { return t . iter . get ( key ) } if v == nil { return nil , ErrNotFound } return v , nil }
document internal iterator behaviour
document internal iterator behaviour
// deleted in transaction