extensions/amp-ad/0.1/amp-ad-ui.js
/**
   * Apply UI for unlaid out ad: Hide fallback.
   * Note: No need to togglePlaceholder here, unlayout show it by default.
   */
Apply UI for unlaid out ad: Hide fallback.
Note: No need to togglePlaceholder here, unlayout show it by default.
Apply UI for unlaid out ad : Hide fallback . Note : No need to togglePlaceholder here unlayout show it by default .
applyUnlayoutUI() {
    this.baseInstance_.deferMutate(() => {
      this.baseInstance_.toggleFallback(false);
    });
  }
applyUnlayoutUI ( ) { this . baseInstance_ . deferMutate ( ( ) => { this . baseInstance_ . toggleFallback ( false ) ; } ) ; }
Apply UI for unlaid out ad: Hide fallback.
Apply UI for unlaid out ad : Hide fallback .