code: def payzen_form(payment_request, auto_submit=False):
      
      if auto_submit:
          template_used = "django_payzen/auto_submit_form.html"
      else:
          template_used = "django_payzen/form.html"
      payment_request.update()
      t = template.loader.get_template(template_used)
      return t.render({
          "form": forms.PaymentRequestForm(instance=payment_request),
          "payzen_submit_url": app_settings.PAYZEN_REQUEST_URL
      })
docs: TODO docstring.