Typescript- Intellisense not working

Hey there,

i've currently the problem, that WebStrom Intellisense don't recognize the constructor arguments, when i import classes:

import Engine = BABYLON.Engine;

There are no constructor arguments shown, when i call:

val _engine = new Engine(...);

But, everything works fine, when i call:

val _engine = BABYLON.Engine(...);

Isn't this feature implemented yet?

Kind Regards,
Chris