title: How to set proxy in nesk/puphpeteer?
body: <p>I am using <code>puphpeteer</code> for my Web Automation program.
  <code>nesk/puphpeteer</code> is a PHP version for <code>puppeteer</code>.
  In <code>puppeteer</code> there is an example for proxy setting.
  But in <code>nesk/puphpeteer</code> there isn't any document or example for it.
  Does anybody know how to do it?</p>
  
  <p>(This is not a duplicated question for <a href="https://stackoverflow.com/questions/52777757/how-to-use-proxy-in-puppeteer-and-headless-chrome">How to use proxy in puppeteer and headless Chrome?</a>)</p>