RavenDB Streaming generic with etag

StreamingTest.cs

    public class StreamingTest : RavenTestBase
    {
        [Fact]
        public void Should_respect_generic_parameter()
        {
            using (var store = NewDocumentStore())
            {
                using (var session = store.OpenSession())
                {
                    session.Store(new Bear());
                    session.Store(new Lion());
                    session.Store(new Bear());
                    session.SaveChanges();
                }

                var counter = 0;
                using (var session = store.OpenSession())
                {
                    using (var enumerator = session.Advanced.Stream<Bear>(fromEtag: Etag.Empty,
                                                          start: 0, pageSize: int.MaxValue))
                    {
                        while (enumerator.MoveNext())
                        {
                            var bear = enumerator.Current.Document;
                            counter++;
                        }
                    }
                }

                Assert.Equal(2, counter);
            }
        }

        public class Bear
        {
            public string Id { get; set; }
        }

        public class Lion
        {
            public string Id { get; set; }
        }
    }