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

class Foo extends core::Object {
  synthetic constructor •() → self::Foo*
    ;
  method method(dynamic x, [dynamic y, dynamic z]) → dynamic
    ;
}
abstract class External extends core::Object {
  synthetic constructor •() → self::External*
    ;
  abstract method externalMethod(core::int* x, [core::int* y, core::int* z]) → core::String*;
  abstract method listen(self::Listener* listener) → void;
}
abstract class Listener extends core::Object {
  synthetic constructor •() → self::Listener*
    ;
  abstract method event(core::String* input, [core::int* x, core::int* y]) → void;
}
class TestListener extends self::Listener {
  synthetic constructor •() → self::TestListener*
    ;
  method event(core::String* input, [core::int* x, core::int* y]) → void
    ;
}
class ExtendedListener extends self::Listener {
  synthetic constructor •() → self::ExtendedListener*
    ;
  method event(core::String* input, [core::int* x, core::int* y, dynamic z]) → void
    ;
}
class InvalidListener extends core::Object {
  synthetic constructor •() → self::InvalidListener*
    ;
  method event(dynamic input, [dynamic x]) → void
    ;
}
external static abstract method createExternal() → self::External*;
static method main() → dynamic
  ;