library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;

static const field core::List<core::int> a = #C1;
static const field core::List<core::int?> b = #C2;
static const field core::Set<core::List<core::int?>> c = #C3;
static method main() → dynamic {}

constants  {
  #C1 = <core::int>[]
  #C2 = <core::int?>[]
  #C3 = <core::List<core::int?>>{#C1, #C2}
}