# File lib/twitter/rest/users.rb, line 252
      def user(*args)
        arguments = Twitter::Arguments.new(args)
        if arguments.last || user_id?
          merge_user!(arguments.options, arguments.pop || user_id)
          perform_get_with_object('/1.1/users/show.json', arguments.options, Twitter::User)
        else
          verify_credentials(arguments.options)
        end
      end