ate);
          this.toggleAttribute('configuration', this.descriptor.configuration);
          this.toggleAttribute('function',      this.descriptor.function);
          this._paramText = (this.descriptor.params || []).map(function(param) {
            return param.name;
          }).join(', ');
        },

        /**
         * Reflects `collapsed` as the `_collapsed` attribute.
         *
         * "Why not use `reflectToAttribute: true`?", you ask? A fine question!
         *
         * We avoid simpl