How do i import javascript libraries in a strictly widget level?

Matheus_ViníciusRamos_da_Fonse

I've been working on a custom widget for a few weeks now and it has go !tten to the point in which i need to add  "print to PDF" functionality. The widget in question generates a report in a modal found within the widget's own HTML file.
I looke online for solutions and i found this: jsPDF. It allows me to save a <div> element of the modal as a PDF to be saved and potentially printed in A4 paper. Problem is: I don't know what to do in order to import into the widget.
Here's what i've tried:

• Tried adding in my define([]) array in this Widget.js