SEBA-282 return 401 on permission error

Change-Id: Ica0c1d6b2aae5a8ed13123f2e5c0382e418b5433
diff --git a/src/tosca/generator.py b/src/tosca/generator.py
index 3f54a77..0e36952 100644
--- a/src/tosca/generator.py
+++ b/src/tosca/generator.py
@@ -23,7 +23,7 @@
 from xosapi.xos_grpc_client import Empty
 
 class Args:
-    pass
+    verbosity = 0
 
 current_dir = os.path.dirname(os.path.realpath(__file__))