How to use the britecharts/dist/umd/bar.min.js function in britecharts

render: function() {
        let barChart = new bar();
        let barContainer = d3.select(this.el);
        let containerWidth = "600";
         
        barChart
            .margin({
                left: 120,
                right: 20,
                top: 20,
                bottom: 10
            })
            .horizontal(true)
            .usePercentage(true)
            .percentageAxisToMaxRatio(1.3)
            .width(containerWidth)
            .height(400);
        barChart.colorSchema(colors.colorSchemas.extendedOrangeColorSchema);