def authorize(order_number, amt, bankcard, billing_address=None):
    return _submit_payment_details(
        gateway.authorize, order_number, amt, bankcard, billing_address)
Check client or verify over-ride.
dataset/ETHPy150Open django-oscar/django-oscar-paypal/paypal/payflow/facade.py/authorize--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/gcloud-python/gcloud/dns/changes.py/Changes._require_client