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

static method fn<T extends core::Object? = dynamic, S extends core::Object? = dynamic>(self::fn::T? t, self::fn::S? s) → void {
  core::List<core::Object> x = <core::Object>[t!, s!];
  core::List<core::Object> y = x;
}
static method main() → dynamic {}