$ plex-axi playlist add 502 --key 111
environment: writable
exit: 1

error: "cannot add items to 'Example Smart Playlist': it is a smart playlist"
code: SMART_PLAYLIST
help[3]:
  A smart playlist's contents are a saved search that Plex re-runs; its items are a result, not a list, and adding to it is not something the server offers
  Run `plex-axi playlist show 'Example Smart Playlist'` to see what the search currently returns
  Run `plex-axi playlist create '<title>' --key <rating_key> --write` for an ordinary playlist you can edit
