BaconographyPortable.Model.Reddit.RedditService.GetSubscribedSubreddits C# (CSharp) Method

        public async Task<HashSet<string>> GetSubscribedSubreddits()
        {
            var hashifyListing = new Func<Thing, string>((thing) =>
                {
                    if (thing.Data is Subreddit)
                    {
                        return ((Subreddit)thing.Data).Name;
                    }
                    else
                        return null;
                });

            return new HashSet<string>((await GetSubscribedSubredditListing())
                    .Data.Children.Select(hashifyListing)
                    .Where(str => str != null));
            
        }