xbmc.Monitor onNotification callback for JSONRPC.NotifyAll?



Is the xbmc.Monitor onNotification callback supposed to be called when a different script sends a JSONRPC.NotifyAll?  I’m trying to capture that from plugin.video.youtube but I don’t seem to get it.  When I turn on json-rpc logging I see

Code:
JSONRPC: Incoming request: {"method": "JSONRPC.NotifyAll", "params": {"sender": "plugin.video.youtube", "message": "PlaybackStarted", "data": {"video_id": "ncFSKnYs5Px", "channel_id": "UCIpafUHTlO8Lp1ItnKbpYmx", "status": {"unlisted": false, "private": false, "crawlable": true, "family_safe": false, "live": false}}}, "jsonrpc": "2.0"}

so I assume Kodi is getting it from youtube addon.

scott s.
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