python3 yt_fts.py download https://www.youtube.com/@PerspectiveArts/videos --channel-id UCUCN8V_pO0xOFKLL4XG1tshnw
   Downloading channel
   Saving vtt files to /tmp/user/1000/tmpm4xoskpo
   Traceback (most recent call last):
   File "/home/user/src/yt-fts/yt_fts.py", line 273, in <module>
     cli()
   File "/home/user/src/yt-fts/.env/lib/python3.11/site-packages/click/core.py", line 1130, in __call__
     return self.main(*args, \*kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "/home/user/src/yt-fts/.env/lib/python3.11/site-packages/click/core.py", line 1055, in main
     rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
   File "/home/user/src/yt-fts/.env/lib/python3.11/site-packages/click/core.py", line 1657, in invoke
     return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "/home/user/src/yt-fts/.env/lib/python3.11/site-packages/click/core.py", line 1404, in invoke
     return ctx.invoke(self.callback, \*ctx.params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "/home/user/src/yt-fts/.env/lib/python3.11/site-packages/click/core.py", line 760, in invoke
     return __callback(*args, \*kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "/home/user/src/yt-fts/yt_fts.py", line 31, in download
     download_channel(channel_id)
   File "/home/user/src/yt-fts/yt_fts.py", line 82, in download_channel
     channel_name = get_channel_name(channel_id)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "/home/user/src/yt-fts/yt_fts.py", line 191, in get_channel_name
     data = json.loads(script.string)
                      ^^^^^^^^^^^^^
   AttributeError: 'NoneType' object has no attribute 'string'