Liquid render questions

Question: Global parameter changes etc.

Hey guys, what is the current structure for global variables etc?

{{global.site.id}}  in the first Liquid implementation no longer renders I was wondering what is the new format.

On a template if you use this. as the  core element you get:

[moduleName, ]

[urlculture, System.Collections.Generic.Dictionary`2[System.String,System.Object]]

[menu_1337216, System.Collections.Generic.Dictionary`2[System.String,System.Object]]

[logout_0, System.Collections.Generic.Dictionary`2[System.String,System.Object]]

[menu_1336130, System.Collections.Generic.Dictionary`2[System.String,System.Object]]

[overallCatalog_1, System.Collections.Generic.Dictionary`2[System.String,System.Object]]

[menu_4, System.Collections.Generic.Dictionary`2[System.String,System.Object]]

[globals, System.Collections.Generic.Dictionary`2[System.String,System.Object]]

And of course, through this objects you can get -

{{this.urlculture.culture}} - EU

This works:

{% if global.user.isLoggedIn == 'true' %}

But {{global.user.isLoggedIn}} does not render.

Whats the state of play on all these?