docs: function () {
        var _this = this;
  
        var options = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];
  
        if (this._bootPromise) {
          return this._bootPromise;
        }
  
        this._bootPromise = new _emberRuntimeExtRsvp.default.Promise(function (resolve) {
          return resolve(_this._bootSync(options));
        });
  
        return this._bootPromise;
      }