title: Gnome javascript documentation
body: <p>I'm trying to dive into Gnome shell extensions development but I'm a little bit confused at the moment.
  I can't seem to find a proper documentation about GJS library. For example I want to know at least what imports are available and members/method of classes without that I can only rely on existing extensions code, not too much.</p>
  
  <p>Can anyone lead me in the right direction?</p>
  
  <p>Thanks in advance.</p>