public MoviesSubscription(IEventStream <Movie> eventStream)
{
Name = "Subscription";
AddField(new EventStreamFieldType()
{
Name = "movieCreated",
Arguments = new QueryArguments(),
Type = typeof(MovieType),
Resolver = new FuncFieldResolver <Movie>(ctx => ctx.Source as Movie),
Subscriber = new EventStreamResolver <Movie>(ctx => eventStream.AsObservable())
});
}