public static IObservable <RepositoryTag> LastTag(this IRepositoriesClient repositoriesClient, Repository repository, Func <RepositoryTag, bool> gitagFilter = null)
{
gitagFilter ??= (tag => true);
return(repositoriesClient.GetAllTags(repository.Id).ToObservable()
.Select(tags => tags.Where(gitagFilter))
.Select(list => list.First()).FirstAsync());
}
