Method getRootNode

src/service/ampdoc-impl.js:466–468

* Returns the root node for this ampdoc. It will either be a `Document` for * the single-doc runtime mode, or a `ShadowRoot` for shadow-doc mode. This * node can be used, among other things, to add ampdoc-wide event listeners. * * @return {!Document|!ShadowRoot}

()

   * @return {!Document|!ShadowRoot}
   */
  getRootNode() {
    return /** @type {?} */ (devAssert(null, 'not implemented'));
  }

  /**
   * Returns the head node. It's either an element or a shadow root.