How to use the upad-parse.notepad function in upad-parse

render() {
		Parser.parse(helpNpx, ['asciimath']);
		const help: INotepad = Parser.notepad;
		const mdGuide = help.sections[1].notes[0];

		extension('mock', () => {
			let matches: string[] = [];
			return [
				{
					type: 'lang',
					regex: /(===([^]+?)===|''([^]+?)''|;;([^]+?);;)/gi,
					replace: function(s: string, match: string) {
						matches.push('&lt;Maths won\'t display in this view. See the help notepad.&gt;<br>' + match);
						let n = matches.length - 1;
						return '%ph' + n + 'ph%';
					}
				},
				{
					type: 'output',