title: Python-GI's WebKit signal pointer writing
body: <p>I'm using PyWebKitGTK on pygobject to embed a WebView into my application. I need to call some python methods from JS code, so I try to use the <a href="https://lazka.github.io/pgi-docs/WebKit-3.0/classes/WebView.html#WebKit.WebView.signals.script_prompt" rel="nofollow"><code>script-prompt</code> signal</a>. </p>
  
  <p>How do I assign the  the <code>text</code> parameter? In C/++, it would be a pointer, so I could write data there (I suppose? Didn't have much C experience), but here it is <code>object</code>:</p>
  
  <blockquote>
    <p><strong>text</strong> (<code>object</code>) – To be filled with the return value or None if the dialog was cancelled.</p>
  </blockquote>