docs: def get_post(self, slug):
          """ This method returns a single post by slug
          """
          cache_key = self.get_cache_key(post_slug=slug)
          content = cache.get(cache_key)
          if not content:
              post = Post.objects.get(slug=slug)
              content = self._format(post)
              cache_duration = conf.GOSCALE_CACHE_DURATION if post else 1
              cache.set(cache_key, content, cache_duration)
          return content