'filename', 'format-sort', 'abort-on-error', 'format-spec', 'no-playlist-metafiles',
'multistreams', 'no-live-chat', 'playlist-index', 'list-formats', 'no-direct-merge',
'no-youtube-channel-redirect', 'no-youtube-unavailable-videos', 'no-attach-info-json', 'embed-metadata',
- 'embed-thumbnail-atomicparsley', 'seperate-video-versions', 'no-clean-infojson', 'no-keep-subs',
+ 'embed-thumbnail-atomicparsley', 'seperate-video-versions', 'no-clean-infojson', 'no-keep-subs', 'no-certifi',
}, 'aliases': {
'youtube-dl': ['-multistreams', 'all'],
'youtube-dlc': ['-no-youtube-channel-redirect', '-no-live-chat', 'all'],