Using pdfmaker in Typescript

Question

I want to use to pdfmaker in my Stenciljs project and following the official Guideline here:

https://pdfmake.github.io/docs/0.1/getting-started/client-side/

as well as previous question at stackoverflow:

error TS2540: Cannot assign to 'vfs' because it is a read-only property

I have first installed pdfmake via npm

 npm install pdfmake

Then I am trying to use it in a component which is called my-messages:

 import * as pdfMake from "pdfmake/build/pdfmake";
 import * as pdfFonts from 'pdfmake/build/vfs_fonts';
 (pdfMake as any).vfs = pdfFonts.pdfMake.vfs;

My component wont even initialize and I keep getting the following the errors in Browser:

TypeError: Cannot read properties of undefined (reading 'pdfMake')
at my-messages.entry.js:78239 undefined

index-2022e853.js:1949 Uncaught (in promise) Error: Constructor for "my-messages#undefined" 
was not found at initializeComponent