```ruby
class ContentVideoDecorator < ApplicationDecorator
  delegate_all

  def embed_url
    url
  end

  def aspect_ratio_class
    '16by9'
  end
end
```

Use the actual provided aspect ratio.
user
```ruby
class ContentVideoDecorator < ApplicationDecorator
  delegate_all

  def embed_url
    url
  end

  def aspect_ratio_class
    aspect_ratio.to_s.split('x').join('by')
  end
end
```
assistant