def advanced_search(args)
      raise ArgumentError.new("Args cannot be blank") if args.nil? || args.empty?

      request_path = "#{base_url}/advanced_search?#{Rack::Utils.build_nested_query(args)}"
      get_json(request_path)
    end
def advanced_search(args)
      raise ArgumentError.new("Args cannot be blank") if args.nil? || args.empty?

      request_path = "#{base_url}/advanced_search?#{Rack::Utils.build_nested_query(args)}"
      get_json(request_path)
    end
Advanced search.

 @deprecated Only in use by Whitehall. Use the `#search` method.