docs: function (args) {
                  var classRef = Aria.getClassRef(args.classpath);
                  try {
                      var cfg = args.cfg || {};
                      cfg.id = this.id || ("proxy_" + __proxyId);
                      __proxyId++;
                      this.proxy = new classRef(this.getElement(), cfg);
                  } catch (ex) {
                      this.$logError(this.INVALID_ATTRIBUTE, ["proxy", "params"]);
                  }
              }