# File lib/webby/resources/layout.rb, line 28
  def extension
    return _meta_data['extension'] if _meta_data.has_key? 'extension'

    if _meta_data.has_key? 'layout'
      lyt = ::Webby::Resources.find_layout(_meta_data['layout'])
      lyt ? lyt.extension : nil
    end
  end