annotating javascript { ... }?

[Erik Blankinship]

Could someone point me at the documentation for annotating the innards of generic JS objects (e.g. 

var myObj = {myKey:[1,2,3], myKey2:{innerKey1:'hi', innerKey2:'ho'}} 

)?

For example, how would I define that object as a parameter?

I apologize for asking what seems like a basic question, but I am still getting my bearings here.  I've reviewed https://developers.google.com/closure/compiler/docs/js-for-compiler but not seeing how to cinch this.  Thank you.

[Ilia Mirkin]

On the page you linked to, look at "record type". For example here you'd want

{{myKey: Array.<number>, myKey2: {innerKey1: string, innerKey2: string}}}

Note that this does not cause the compiler to all of a sudden stop
from renaming properties in advanced mode.

-ilia