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

typedef F<X extends self::Class<X> = self::Class<dynamic>> = X;
class Class<T extends core::Object? = dynamic> extends core::Object {
  synthetic constructor •() → self::Class<self::Class::T%>
    ;
}
class ConcreteClass extends core::Object implements self::Class<self::ConcreteClass> {
  synthetic constructor •() → self::ConcreteClass
    ;
}
class G<X extends self::Class<self::G::X> = self::Class<dynamic>> extends core::Object {
  synthetic constructor •() → self::G<self::G::X>
    ;
}
static method test() → dynamic
  ;
static method main() → dynamic
  ;