def render_payment_form(self):
        self.context[self.form_context_name] = self.payment_form_cls()
        return TemplateResponse(self.request, self.payment_template, self.context)
unzipIterChunky should unzip the given number of bytes per iteration on
dataset/ETHPy150Open spookylukey/django-paypal/paypal/pro/views.py/PayPalPro.render_payment_form--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/python/test/test_zipstream.py/ZipstreamTest.test_chunkyDeflated