Reset Tilemap bounds to visible only?

I've been messing around with navigation lately and discovered that the bounds of a tilemap get moved out if you accidentally draw a tile and then delete it. This makes sense, but is there a way to recalculate what the bounds of a tilemap "should" be given only visible tiles? This is causing my nav to encapsulate an area about 20x the size it should be due to having the wrong tilemap selected some weeks ago and drawing a tile and then deleting it. This also seems good for performance to be able to recalc the bounds of a tilemap after erasing tiles.

 

Use tilemap.CompressBounds() to reduce the size of the bounds to existing tiles.