library;
import self as self;
import "dart:core" as core;

class Base extends core::Object {
  default constructor •() → void
    ;
}
class Mixin extends core::Object {
  default constructor •() → void
    ;
  method foo() → dynamic
    ;
}
abstract class _Base&Mixin = self::Base with self::Mixin {
}
class Sub extends self::_Base&Mixin {
  default constructor •() → void
    ;
}
static method main() → dynamic
  ;