[SEBA-988] Bump xos libraries in SimpleExampleService

Change-Id: Ic235433105773b5c5fdc65ea95ee6634f95af84b
diff --git a/xos/synchronizer/steps/sync_simpleexampleserviceinstance.py b/xos/synchronizer/steps/sync_simpleexampleserviceinstance.py
index 73c5859..60fd827 100644
--- a/xos/synchronizer/steps/sync_simpleexampleserviceinstance.py
+++ b/xos/synchronizer/steps/sync_simpleexampleserviceinstance.py
@@ -17,13 +17,16 @@
 import os
 import sys
 from xossynchronizer.steps.syncstep import SyncStep
+from xossynchronizer.modelaccessor import SimpleExampleService, SimpleExampleServiceInstance
+
 from xosconfig import Config
 from multistructlog import create_logger
 
 log = create_logger(Config().get('logging'))
 
 class SyncSimpleExampleServiceInstance(SyncStep):
-    observes = "SimpleExampleServiceInstance"
+    provides = [SimpleExampleServiceInstance]
+    observes = SimpleExampleServiceInstance
     requested_interval = 0
 
     def __init__(self, *args, **kwargs):