Method getImpl

src/custom-element.js:1570–1573

* Returns reference to upgraded implementation. * @param {boolean} waitForBuild If true, waits for element to be built before * resolving the returned Promise. Default is true. * @return {!Promise<!./base-element.BaseElement>}

(waitForBuild = true)

     * @return {!Promise<!./base-element.BaseElement>}
     */
    getImpl(waitForBuild = true) {
      const waitFor = waitForBuild ? this.build() : this.createImpl_();
      return waitFor.then(() => this.impl_);
    }

    /**
     * @return {!Promise<!./base-element.BaseElement>}