Followers
Follow Playlist
playlists.followers.follow(playlist_id, **kwargs) -> void
PUT/playlists/{playlist_id}/followers
Unfollow Playlist
playlists.followers.unfollow(playlist_id) -> void
DELETE/playlists/{playlist_id}/followers
Check if Current User Follows Playlist
playlists.followers.check(playlist_id, **kwargs) -> FollowerCheckResponse
GET/playlists/{playlist_id}/followers/contains