scrollToEnd() {
      const expandedTokenizerScrollWidth = this.expandedContentDom && (this.effectiveDir !== "rtl" ? this.expandedContentDom.scrollWidth : -this.expandedContentDom.scrollWidth);
      if (this._scrollEnablement.scrollContainer) {
        this._scrollEnablement.scrollTo(expandedTokenizerScrollWidth, 0, 5, 10);
      }
    }
Scrolls the container of the tokens to its end when expanded.
This method is used by MultiInput and MultiComboBox.
@private