```ruby
require 'link_thumbnailer/scrapers/opengraph/base'

module LinkThumbnailer
  module Scrapers
    module Opengraph
      class Video < ::LinkThumbnailer::Scrapers::Opengraph::Base

        def value
          model
        end

        private
        
        def attribute
          if website.url.host =~ /vimeo/
            'og:url'
          else
            super
          end
        end

        def model
          nodes.map { |n| modelize(n, n.attributes['content'].to_s) }
        end

        def modelize(node, text = nil)
          model_class.new(text)
        end

        def nodes
          nodes = meta_xpaths(attribute: attribute)
          nodes.empty? ? meta_xpaths(attribute: attribute, key: :name) : nodes
        end

      end
    end
  end
end
```

Document Vimeo workaround in code.
user
```ruby
require 'link_thumbnailer/scrapers/opengraph/base'

module LinkThumbnailer
  module Scrapers
    module Opengraph
      class Video < ::LinkThumbnailer::Scrapers::Opengraph::Base

        def value
          model
        end

        private
        
        def attribute
          if website.url.host =~ /vimeo/
            # Vimeo uses a SWF file for its og:video property which doesn't
            # provide any metadata for the VideoInfo gem downstream. Using
            # og:url means VideoInfo is passed a webpage URL with metadata
            # it can parse:
            'og:url'
          else
            super
          end
        end

        def model
          nodes.map { |n| modelize(n, n.attributes['content'].to_s) }
        end

        def modelize(node, text = nil)
          model_class.new(text)
        end

        def nodes
          nodes = meta_xpaths(attribute: attribute)
          nodes.empty? ? meta_xpaths(attribute: attribute, key: :name) : nodes
        end

      end
    end
  end
end
```
assistant