fn main() {
	a1 := [?string('foo'), ?string(none)]!
	dump(a1)

	a2 := [?int(22), ?int(none)]!
	dump(a2)

	a3 := [?f64(22.2), ?f64(none)]!
	dump(a3)

	a4 := [?bool(true), ?bool(none)]!
	dump(a4)
}