title: How to use Intellisense from other languages in the current language
body: <p>I want to use GML's Intellisense in Lua language mode, but I tried multiple methods but they are all invalid.</p>
  
  <p>I also tried to use <a href="https://github.com/DefinitelyTyped/DefinitelyTyped" rel="nofollow noreferrer">DefinitelyTyped</a>, but it only works fine in JavaScript and TypeScript, can't be used for other languages.</p>