How to use the @swimlane/ngx-charts/release/utils.id function in @swimlane/ngx-charts

}

    this.yDomain = this.getYDomain();
    this.seriesDomain = this.getSeriesDomain();

    this.xScale = this.getXScale(this.xDomain, this.dims.width);
    this.yScale = this.getYScale(this.yDomain, this.dims.height);

    this.updateTimeline();

    this.setColors();
    this.legendOptions = this.getLegendOptions();

    this.transform = `translate(${ this.dims.xOffset } , ${ this.margin[0] })`;

    this.clipPathId = 'clip' + id().toString();
    this.clipPath = `url(#${this.clipPathId})`;
  }

update(): void {
    this.dims = this.getDims();
    this.height = this.dims.height;
    const offsetY = this.view[1] - this.height;

    this.xDomain = this.getXDomain();
    this.xScale = this.getXScale();

    if (this.brush) {
      this.updateBrush();
    }

    this.transform = `translate(0 , ${ offsetY })`;

    this.filterId = 'filter' + id().toString();
    this.filter = `url(#${this.filterId})`;

    this.cd.markForCheck();
  }