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

class A extends core::Object {
  constructor •() → self::A
    ;
}
class B extends core::Object {
  constructor •(core::int x, core::double y, core::String s) → self::B
    ;
}
class C<T extends core::Object? = dynamic> extends core::Object {
  constructor •() → self::C<self::C::T%>
    ;
}
class D<T extends core::Object? = dynamic, S extends core::Object? = dynamic> extends core::Object {
  constructor •(self::D::T% x, self::D::S% y) → self::D<self::D::T%, self::D::S%>
    ;
}
static method main() → void
  ;