@abstractmethod
    def get_minimum_part_size(self):
Instantiate the CronTimeField objects for the five cron time fields.
dataset/ETHPy150Open Backblaze/B2_Command_Line_Tool/b2/account_info.py/AbstractAccountInfo.get_minimum_part_size--crossover with--dataset/ETHPy150Open lyda/chkcrontab/chkcrontab_lib.py/InitCronTimeFieldLimits