text: from django.contrib.sitemaps import Sitemap
  
  from .models import Post
  
  
  class PostSitemap(Sitemap):
  
      changefreq = 'weekly'
      priority = 0.9
  
      def items(self):
  
          return Post.objects.all()
  
      def lastmod(self, obj):
  
          return obj.created
  