get_playlists cannot process the additional arg: query = list(q='mykeyword')

[mrchang7]

If I include the query argument it throws an error below:

Error in f(init, x[[i]]) : is.request(y) is not TRUE

In my checking of the code, the tuber_GET is already using the argument 'query' but exclusively for some specific things. According to the docu, the query (q=) could be delivered through "..." at the end of the argument list.

The original purpose of this function might not accommodate the keyword search. But I think it should be necessary as the function only retrieves max 50 playlists of the given channel. Many channels are growing adding more than 50 playlists. Thanks for your contribution!