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

typedef D1<X extends core::Object? = dynamic> = self::A<X%>;
typedef D2<X extends core::num> = self::A<X>;
class A<X extends core::Object? = dynamic> extends core::Object {
  synthetic constructor •() → self::A<self::A::X%>
    ;
  static method foo<X extends core::Object? = dynamic>(self::A::foo::X% x) → self::A::foo::X%
    ;
}
static method test() → dynamic
  ;
static method main() → dynamic
  ;