def obj_get_list(self, request=None, **kwargs):
        raise NotImplementedError()
Float number about used capacity
dataset/ETHPy150Open toastdriven/piecrust/piecrust/resources.py/Resource.obj_get_list--crossover with--dataset/ETHPy150Open globocom/database-as-a-service/dbaas/logical/models.py/Database.capacity