Synchronous Lightmapping.BakeMultipleScenes

Is there a synchronous version of Lightmapping.BakeMultipleScenes?

I need to bake my lightmaps as part of a build system and I have no way of knowing when the bake process has finished.

 

I load all the scenes, make a prebake operation and call Lightmapping.Bake. It´s a synchronous operation

https://docs.unity3d.com/ScriptReference/Lightmapping.Bake.html

 

Doesn't this bake the scenes differently?

And what do you mean by 'prebake operation'?
Just a job in your build system or something Unity-side?

EDIT: Also do you know if it's possible to bake lighting in batchmode? I couldn't get it to work.

 

In our prebake operation, we enable some emissive materials. Nothing special.

I assume that the bake could be done in batchmode, but this option haven´t been tested in my side. Sorry, dude.