title: Python pass request headers to pdfkit
body: <p>I am trying to convert a URL to pdf using pdfkit in python as follows.</p>
  
  <pre><code>import pdfkit
  pdfkit.from_url(url, file_path)
  </code></pre>
  
  <p>I wanted to know is there some way to pass custom request headers with this URL such as <code>X-Proxy-REMOTE-USER</code> to something.</p>