text: from django.http import HttpResponse, StreamingHttpResponse
  from django.urls import reverse
  from django.utils.deprecation import MiddlewareMixin
  
  from . import urlconf_inner
  
  
  class ChangeURLconfMiddleware(MiddlewareMixin):
      def process_request(self, request):
          request.urlconf = urlconf_inner.__name__
  
  
  class NullChangeURLconfMiddleware(MiddlewareMixin):
      def process_request(self, request):
          request.urlconf = None
  
  
  class ReverseInnerInResponseMiddleware(MiddlewareMixin):
      def process_response(self, *args, **kwargs):
          return HttpResponse(reverse('inner'))
  
  
  class ReverseOuterInResponseMiddleware(MiddlewareMixin):
      def process_response(self, *args, **kwargs):
          return HttpResponse(reverse('outer'))
  
  
  class ReverseInnerInStreaming(MiddlewareMixin):
      def process_view(self, *args, **kwargs):
          def stream():
              yield reverse('inner')
          return StreamingHttpResponse(stream())
  
  
  class ReverseOuterInStreaming(MiddlewareMixin):
      def process_view(self, *args, **kwargs):
          def stream():
              yield reverse('outer')
          return StreamingHttpResponse(stream())
  