FIX: Added missing code snippet

ml/thing.py

@@ -650,6 +650,14 @@ def on_service_request(self, body_json):
                 "Functionality %s is not one of the built-in functionalities in %s!"
                 % (service_functionality, self.name)
             )
+            service_reply.fillServiceReply(
+                senderUUID=self.thing_id,
+                receiverUUID=body_json.get("sender", None),
+                serviceType=body_json.get("serviceType", None),
+                results={"error": "invalid functionalities (serviceType) {}".format(service_functionality)},
+                replyingToUUID=body_json.get("identifier", None),
+                msgUUID="s3i:{}".format(uuid.uuid4())
+            )
         else:
             # TODO: Call right functionality.
             try:
@@ -789,21 +797,24 @@ def to_dir_json(self):
         if self.features.get("ml40::Location") is not None:
             self.dir_json["attributes"]["location"] = {
                 "longitude": self.features.get("ml40::Location").to_json()["longitude"],
-                "latitude": self.features.get("ml40::Location").to_json()["latitude"],
+                "latitude": self.features.get("ml40::Location").to_json()["latitude"]
             }
         self.dir_json["attributes"]["dataModel"] = "fml40"
         self.dir_json["attributes"]["thingStructure"] = {
             "class": "ml40::Thing",
-            "links": [],
+            "links": []
         }
         for key in self.roles.keys():
-            role_entry = {"association": "roles", "target": self.roles[key].to_json()}
+            role_entry = {
+                "association": "roles",
+                "target": self.roles[key].to_json()
+            }
             self.dir_json["attributes"]["thingStructure"]["links"].append(role_entry)
 
         for key in self.features.keys():
             feature_target = {
                 "class": self.features[key].to_json()["class"],
-                "identifier": self.features[key].to_json()["identifier"],
+                "identifier": self.features[key].to_json()["identifier"]
             }
             feature_entry = {"association": "features", "target": feature_target}
             # if the feature has targets, like ml40::Composite