How to create Multi Type Charts with pptxgenjs

Question

I am using PptGenJs (https://gitbrent.github.io/PptxGenJS/docs/api-charts/) to create a Multi Type Chart (a bar and a line in the same chart) in my Angular application. I am testing the demo code from the PptGenJs-Github-Repo, which you can find it here: https://github.com/gitbrent/PptxGenJS/blob/master/demos/modules/demo_chart.mjs#L1715

I am surprised to find that it doesn't work in my case. I have PptGenJs Version of 3.10.0 and Angular Version of 13.2.0.

The problems are:

1. charts are not found in "type: pptx.charts.BAR". Instead, I have to change it to "type: pptx.ChartType.bar"

2. the method of "slide.addChart(chartTypes, opts)" shows error. It seems that the parameter of "data" is missing according to its documentation:

addChart(type: CHART_NAME | IChartMulti[], data: any[], options?: IChartOpts): Slide

I must have done something wrong, but have no idea. Could anyone help me? Many thanks.

regards, CC