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

typedef TA1 = self::A1;
typedef TTA1 = self::A1;
typedef TTTA1 = self::A1;
typedef TTTTA1 = self::A1;
typedef TA2 = self::A2;
typedef TTA2 = self::A2;
typedef TTTA2 = self::A2;
typedef TTTTA2 = self::A2;
typedef TA3 = self::A3;
typedef TTA3 = self::A3;
typedef TTTA3 = self::A3;
typedef TTTTA3 = self::A3;
typedef TTTTA4 = self::A4;
typedef TTTA4 = self::A4;
typedef TTA4 = self::A4;
typedef TA4 = self::A4;
class A1 extends core::Object {
  final field core::String foo;
  constructor •(core::String foo) → self::A1
    ;
}
class D1 extends self::A1 {
  constructor •(core::String foo) → self::D1
    ;
}
class A2 extends core::Object {
  final field core::String foo;
  constructor •({core::String foo = "bar"}) → self::A2
    ;
}
class D2 extends self::A2 {
  constructor •({core::String foo = "bar"}) → self::D2
    ;
}
class A3 extends core::Object {
  final field core::String foo;
  constructor •([core::String foo = "bar"]) → self::A3
    ;
}
class D3 extends self::A3 {
  constructor •([core::String foo = "bar"]) → self::D3
    ;
}
class D4 extends self::A4 {
  constructor •([core::String foo = "bar"]) → self::D4
    ;
}
class A4 extends core::Object {
  final field core::String foo;
  constructor •([core::String foo = "bar"]) → self::A4
    ;
}
static method main() → dynamic
  ;