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

import "org-dartlang-testcase:///opt_out_lib.dart";

static method foo(dynamic d, void v, core::Object? onull, core::Object o, core::String? snull, core::String s) → dynamic {
  opt::f<dynamic>(d);
  opt::f<void>(v);
  opt::f<core::Object?>(onull);
  opt::f<core::Object>(o);
  opt::f<core::String?>(snull);
  opt::f<core::String>(s);
}
static method main() → dynamic {}

library;
import self as opt;
import "dart:core" as core;

static method f<T extends core::Object* = dynamic>(opt::f::T* a) → opt::f::T*
  return a;