public async Task AddAsync(CourseEpisode episode, Guid moduleId)
        {
            var module = await _moduleRepository.GetAsync(moduleId);

            module.Episodes.ToList().Add(episode.Id);
            await _repository.AddAsync(episode.AsDocument());

            await _moduleRepository.UpdateAsync(module);
        }
 public async Task UpdateAsync(CourseEpisode episode)
 {
     await _repository.UpdateAsync(episode.AsDocument());
 }