# File lib/nokogiri/xml/builder.rb, line 29
      def method_missing(method, *args, &block)
        if @context.respond_to?(method)
          @context.send(method, *args, &block)
        else
          node = Nokogiri::XML::Node.new(method.to_s, @doc) { |n|
            if content = args.first
              if content.is_a?(Hash)
                content.each { |k,v| n[k.to_s] = v.to_s }
              else
                n.content = content
              end
            end
          }
          insert(node, &block)
        end
      end