Fitting the edges

[amitaiwe]

Hi to all,
I'm new here and new to C# programming so sorry if I'm
missing things which aren't allowed in the forum.

I'm trying to implement a software which can (at the first stage) display a list of a YouTube user's playlists,
using a windows form application.

I've see quiet a few videos and articles, and viewed the Google API site, but I have some things missing out.

I'm Basing myself on the code as appears in this site - https://automatetheplanet.com/youtube-playlists-api-csharp-code/

This is what I've started with in at my form -

namespace YouTubeTest
{
    public partial class FormGetPlaylist : Form
    {
        public FormGetPlaylist()
        {
            InitializeComponent();
        }

        private void buttonGoclick_Click(object sender, EventArgs e)
        {
            listBoxPlaylists.Items.Clear();

            string userEmail = textBoxUsersName.Text;
            List<YouTubePlayList> 

            //YouTubeVideo[] playlists = YouTubeAPI.GetPlaylist(userEmail);

            foreach (var playlist in playlists)
            {
                listBoxPlaylists.Items.Add(playlist);
            }


        }
    }
}

how do I interact with the function 'GetUserPlayLists' below so to get the list of playlists ?
the part of code below exists in a different file , 'YouTubeServiceClient', under the namespace YouTubePlaylistAPI:

...

        public List<YouTubePlayList> GetUserPlayLists(string userEmail)
        {
            var playLists = new List<YouTubePlayList>();

            try
            {
                var service = new YouTubeServiceClient();
                service.GetUserPlayListsAsync(userEmail, playLists).Wait();
            }
            catch (AggregateException ex)
            {
                foreach (var e in ex.InnerExceptions)
                {
                    //TODO: Add Logging
                }
            }

            return playLists;
        }


....

besides, Do I need to added code in the 'TODO' comment or that's optional?

Thanks in advance,
Amitai