# File lib/openid/yadis/discovery.rb, line 40
      def initialize(request_uri)
        # Initialize the state of the object
        #
        # sets all attributes to None except the request_uri
        @request_uri = request_uri
        @normalized_uri = nil
        @xrds_uri = nil
        @content_type = nil
        @response_text = nil
      end