How to view nested STL container in debugger - C++

vscode cannot display nested STL container in the debugger.

For example,say we have
typedef set A
typedef list G
map<int, G > D;

IN the debugger, the only data I can inspect is A. G and D both would show stuff like:
std::__cxx11::_List_base<std::set<int, std::less, std::allocator >, std::allocator<std::set<int, std::less, std::allocator > > >

I have

"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
]

enabled.

If this intended, then how do we debug a complex data structure?

Advice is appreciated.