rolling_tv_channel.py: KeyError 'Metadata'

[sdavisNL]

In which file is the bug?

• rollinng_tv_channel.py

Describe the setup (arguments and their values, how it was run, etc.):

• In Tautulli running in a docker on Unraid. Testing using on play trigger.

Describe what the bug is:

Traceback (most recent call last):
    File "/config/scripts/rolling_tv_channel.py", line 133, in <module>
        response = rolling_tv_channel(ssn=ssn, playlist_name=args.PlaylistName)
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/config/scripts/rolling_tv_channel.py", line 75, in rolling_tv_channel
        playlist_output = ssn.get(f'{base_url}/playlists/{playlist_ratingkey}/items').json()['MediaContainer']['Metadata']
                                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
KeyError: 'Metadata'

Describe what should be happening:
Playlist has been created but remains empty and get the above error.