title: Import pdfmake.js file to my ts file
body: <p>I am developing a vsts web extension .
  I want a to use <code>PDFmake.js</code> file to generate a <code>pdf</code>.
  <code>PDFmake.js</code> file is <code>imported</code> to <code>node_nodules</code> folder by installing as <code>npm install  pdfmake</code>.</p>
  
  <p>I want to <code>import</code> this <code>js file</code> to my <code>ts file</code>.
  this is how i am doing ,</p>
  
  <pre><code>import pdfmake = require("../node_modules/pdfmake/build/pdfmake");
  </code></pre>
  
  <p>It gives me below error.</p>
  
  <pre><code>Severity    Code    Description Project File    Line    Suppression State
  Error   TS5055  Cannot write file 'D:/TFS/DM Helper Tools/DEV/WebExtension/RapidCCB/build/pdfmake.js' because it would overwrite input file.    &lt;Unknown&gt;       1   Active
  </code></pre>