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 = dynamic>(T x) → T => x).{core::Object::runtimeType});
  core::print((<T extends core::num = core::num>(T x) → T => x).{core::Object::runtimeType});
  core::print((<T extends core::Comparable<T> = core::Comparable<dynamic>>(T x) → T => x).{core::Object::runtimeType});
  core::print((<T extends core::Comparable<S> = core::Comparable<dynamic>, S extends core::Object = dynamic>(T x) → T => x).{core::Object::runtimeType});
  core::print((<T extends (T) → dynamic = (core::Null) → dynamic>(T x) → T => x).{core::Object::runtimeType});
  core::print((<T extends core::List<core::List<T>> = core::List<core::List<dynamic>>>(T x) → T => x).{core::Object::runtimeType});
}