@abstractmethod
    def _scroll(self, lines):
Returns field's value prepared for database lookup.
dataset/ETHPy150Open peterbrittain/asciimatics/asciimatics/screen.py/Screen._scroll--crossover with--dataset/ETHPy150Open brosner/django-timezones/timezones/fields.py/LocalizedDateTimeField.get_db_prep_lookup