Already includes this change; pass it as expectedVersion to the next call.
Tracks newly queued.
Input path count minus the tracks resolved from paths, floored at zero. A folder or playlist file resolves to several tracks, so this is not a count of the paths that failed.
Entries that were already queued and moved.
Queue length afterwards.
Always true here; a failed call resolves with ApiFailure instead.
Successful response from
queue.insertNext.