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

import "dart:isolate";

static field dynamic subscription;
static method onData(dynamic x) → void {
  core::print(x);
  self::subscription{dynamic}.cancel();
}
static method main() → dynamic {
  core::String string = core::String::fromCharCode(65);
  iso::ReceivePort port = iso::ReceivePort::•();
  self::subscription = port.{iso::ReceivePort::listen}(#C1){((dynamic) →? void, {cancelOnError: core::bool?, onDone: () →? void, onError: core::Function?}) → asy::StreamSubscription<dynamic>};
  port.{iso::ReceivePort::sendPort}{iso::SendPort}.{iso::SendPort::send}(string){(core::Object?) → void};
}

constants  {
  #C1 = static-tearoff self::onData
}