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

static method main() → dynamic {
  core::print(self::main is () → dynamic);
  core::print((<T extends core::Object>(T x) → T => x).{core::Object::runtimeType});
  core::print((<T extends core::num>(T x) → T => x).{core::Object::runtimeType});
  core::print((<T extends core::Comparable<T>>(T x) → T => x).{core::Object::runtimeType});
}