code: def find_entries(self, users, start, *args, **kwargs):
          
          forever = kwargs.get('all', False)
          for user in users:
              if forever:
                  entries = Entry.objects.filter(user=user).order_by('start_time')
              else:
                  entries = Entry.objects.filter(
                      user=user, start_time__gte=start).order_by(
                      'start_time')
              yield entries
docs: Find all entries for all users, from a given starting point.
          If no starting point is provided, all entries are returned.