diff -r edd7a3a06d86 -r 081265cda5b1 runtime/__init__.py
--- a/runtime/__init__.py	Thu Apr 12 16:38:09 2018 +0200
+++ b/runtime/__init__.py	Thu Apr 12 22:20:38 2018 +0200
@@ -24,5 +24,5 @@
 from __future__ import absolute_import
 import os
 
-from runtime.PLCObject import PLCObject, PLCprint
+from runtime.PLCObject import PLCObject, PLCprint, MainWorker
 import runtime.ServicePublisher