def can_filter(self):
        return not self.low_mark and self.high_mark is None
Fetch the completed details about the PayPal transaction.
dataset/ETHPy150Open CollabQ/CollabQ/vendor/django/db/models/sql/query.py/BaseQuery.can_filter--crossover with--dataset/ETHPy150Open django-oscar/django-oscar-paypal/paypal/express/facade.py/fetch_transaction_details