TraktPlugin.TraktCache.AddMoviesToCollection C# (CSharp) Méthode

        internal static void AddMoviesToCollection(List<TraktSyncMovieCollected> movies)
        {
            var collectedMovies = (_CollectedMovies ?? new List<TraktMovieCollected>()).ToList();

            collectedMovies.AddRange(
                from movie in movies
                select new TraktMovieCollected
                {
                    CollectedAt = movie.CollectedAt ?? DateTime.UtcNow.ToISO8601(),
                    Movie = new TraktMovie
                    {
                        Ids = movie.Ids,
                        Title = movie.Title,
                        Year = movie.Year
                    }
                });

            _CollectedMovies = collectedMovies;
        }