 let options = this.__templatizeOptions;
        if ((props && options.instanceProps) || !options.instanceProps) {
          this._enableProperties();
        }
      }
      /**
       * Configure the given `props` by calling `_setPendingProperty`. Also
       * sets any properties stored in `__hostProps`.
       * @private
       * @param {Object} props Object of property name-value pairs to set.
       */
      _configureProperties(props) {
        let options = this.__templatizeOptions;
        if (prop