```ruby
class FeedPresenter < Presenter
  attribute :id, :title, :description
  attribute :url, :site_url
  attribute :last_modified_at, :status
  attribute :created_at, :updated_at
end```

Include posts count into feed presenter
user
```ruby
class FeedPresenter < Presenter
  attribute :id, :title, :description
  attribute :url, :site_url
  attribute :last_modified_at, :status
  attribute :posts_count, :unread_posts_count
  attribute :created_at, :updated_at
end```
assistant