what's is Coldspring's <map> eqv in Wirebox?

I’m porting my Coldspring xml into Wirebox, but I’m stuck.

in Coldspring can create a struct of singletons and then pass that struct into the ‘bean’ by constructor or setter.

What to do in Wirebox to do the same thing?

E.g.

A struct my friend.

But it is a struct of singleton beans though… can I already getInstance in config() ??

Thanks