e.g. if you change viewport_shade property:
bpy.data.screens["Scripting"].(null) = 'WIREFRAME'

or Move to layer:
bpy.data.window_managers["WinMan"].(null)[0] = True


A guy at ba.org tried to use this line in his script and of course it's a no go. If a log entry is such useless, it shouldn't log or resolve properly (which is problematic too, as it would require the current screen layout to stay unchanged to be repeatable)