namespace outter{

	function foo(){}

	namespace inner{
		invoke foo();
	}

}


------------

(c) => {
	let foo = c->create_function("foo");
	foo->set_defintion(...);
	...

	let inner = c->create_namespace("inner");
	inner->set_defintion((c) => {
		c->embed(foo());
	});

	...
}