How to use the mathjax-full/js/handlers/html.RegisterHTMLHandler function in mathjax-full

constructor(options: MathToSVGConfig) {
        this.options = options;

        //
        //  Create DOM adaptor and register it for HTML documents
        //
        const adaptor = liteAdaptor();
        const htmlHander = RegisterHTMLHandler(adaptor);
        //EnrichHandler(htmlHander, new MathML());

        //
        //  Create input and output jax and a document using them on the content from the HTML file
        //
        this.tex = new TeX({ packages: options.packages });
        this.svg = new SVG({
            fontCache: (options.fontCache ? 'local' : 'none'),
            internalSpeechTitles: true
        });

        this.html = mathjax.document('', {
            InputJax: this.tex,
            OutputJax: this.svg
            //enrichSpeech: options.enrichSpeech
        });