library;
//
// Problems in library:
//
// pkg/front_end/testcases/general/null_safety_invalid_experiment_and_language_version.dart:7:4: Error: This requires the null safety language feature, which requires language version of 2.12 or higher.
// int? i;
//    ^
//
import self as self;
import "dart:core" as core;

static field core::int? i;
static method main() → dynamic {}