autoUpdater artifact for setFeedURL


I am trying to understand what will be artifact for autoUpdater.setFeedURL function? will it be asar file including just js source code or it will be dmg file which is build using electron-builder? autoUpdater documentation does not go into these details. BTW, I am using electron-builder to build the dmg file so I am curious if i need to redistribute electron and node as part of new distribution or I can just build asar file and point autoUpdater to it.