text: import { jsPDF } from "jspdf"
  var font = 'undefined';
  var callAddFont = function () {
  this.addFileToVFS('SourceHanSans-normal.ttf', font);
  this.addFont('SourceHanSans-normal.ttf', 'SourceHanSans', 'normal');
  };
  jsPDF.API.events.push(['addFonts', callAddFont])