What event is there to call when the "save" link is clicked?

[gmarshall56]

This all works great however when a user clicks and drags the pointer to create a buffer around a shape on the map and clicks "Save" what should event in your API should be called from my JavaScript code in order to get all of the lat / lngs inside of the buffer?
I noticed when you add a buffer to a polyline and click "Save" the map.on(L.Draw.Event.CREATED, function(e).... is triggered, however this does not happen when you click save after buffering any other drawing shape (square, circle, polygon).

Thank you