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

class A extends core::Object {
  synthetic constructor •() → self::A
    ;
  method foo(dynamic x) → asy::Future<void> async 
    ;
}
class B extends core::Object {
  synthetic constructor •() → self::B
    ;
  method bar(dynamic x) → asy::Future<void> async 
    ;
}
static method main() → dynamic async 
  ;