module main

import json

struct Bar {
	name string
}

struct Foo {
	a ?int
	b ?[]Bar
}

fn main() {
	src := '{"a": 1, "b": [{"name": "x"}]}'
	f := json.decode(Foo, src) or { return }
	if v := f.a {
		println(v)
	}
	if v := f.b {
		println(v)
	}
}