new_contents: # django cron
  from django_cron import CronJobBase
  from django_cron import CronJobManager
  
  
  class BaseCronJob(CronJobBase):
  
      @classmethod
      def release(cls):
          silent = False
          with CronJobManager(cls, silent) as manager:
              lock = manager.lock_class(cls, manager.silent)
              lock.release()
  
subject: Add BaseCronJob class