|  | library; | 
|  | import self as self; | 
|  | import "dart:core" as core; | 
|  | import "dart:async" as asy; | 
|  |  | 
|  | import "dart:async"; | 
|  |  | 
|  | class A<X extends core::Object? = dynamic> extends core::Object { | 
|  | synthetic constructor •() → self::A<self::A::X%> | 
|  | ; | 
|  | } | 
|  | static method foo<X extends core::Object?>(self::A<self::foo::X%> x) → asy::Future<self::foo::X?> | 
|  | ; | 
|  | static method bar(core::String? y) → dynamic | 
|  | ; | 
|  | static method test(self::A<core::String> a) → dynamic async | 
|  | ; | 
|  | static method test2(self::A<core::String> a) → dynamic async | 
|  | ; | 
|  | static method test3(self::A<core::String> a) → dynamic | 
|  | ; | 
|  | static method main() → dynamic | 
|  | ; |