What is THE global - root context - object in Espruino JS?

In node.js, each module has its own top-level scope, but they all have access to the global object. Although, the use of global variables is frowned upon (bad for testability and various other reasons) :)

http://nodejs.org/api/globals.html#globals_global

I think the same would make sense for Espruino, each module having its own scope and the ability to access the global global object for shared state.