old_contents: from django.shortcuts import render
  
  # Create your views here.
  
new_contents: from django.views.generic import CreateView, DeleteView
  
  from newsletters.models import Subscription
  from newsletters.forms import SubscriptionForm
  
  
  class SubscriptionCreateView(CreateView):
      form_class = SubscriptionForm
  
  
  class SubscriptionDeleteView(DeleteView):
      model = Subscription
  
subject: add a create and delete view for newsletter subscription models