How to use the react-overlays/es/utils/isOverflowing function in react-overlays

updateStyle() {

    const dialogNode = this._modal!.dialog;
    const dialogHeight = dialogNode.scrollHeight;

    const document = ownerDocument(dialogNode);
    const bodyIsOverflowing = isOverflowing(
      this.props.container && ReactDOM.findDOMNode(this.props.container) as HTMLElement || document.body
    );
    const modalIsOverflowing =
      dialogHeight > document.documentElement!.clientHeight;

    this.setState({
      style: {
        paddingRight:
          bodyIsOverflowing && !modalIsOverflowing
            ? getScrollbarSize()
            : undefined,
        paddingLeft:
          !bodyIsOverflowing && modalIsOverflowing
            ? getScrollbarSize()
            : undefined
      }