change the `bound` example from this[name] = `this[name].bind(this)` to `this[name] = target.bind(this)` for supporting Private properties

[PupilTong]

This works for me with typescript 5.4.5

function bound<T extends CallableFunction, P>(target: T, {addInitializer, name}: ClassMethodDecoratorContext<P>):void {
  addInitializer(function (this: any) {
    this[name] = target.bind(this);
  });
}

class MyClass {
  @bound
  #myfoo() {
  }
}