--- a/sat/plugins/plugin_xep_0060.py	Mon Oct 10 15:23:59 2022 +0200
+++ b/sat/plugins/plugin_xep_0060.py	Tue Sep 20 16:22:18 2022 +0200
@@ -893,14 +893,20 @@
             client, jid.JID(service_s) if service_s else None, nodeIdentifier, options
         )
 
-    def createNode(self, client, service, nodeIdentifier=None, options=None):
+    def createNode(
+        self,
+        client: SatXMPPClient,
+        service: jid.JID,
+        nodeIdentifier: Optional[str] = None,
+        options: Optional[Dict[str, str]] = None
+    ) -> str:
         """Create a new node
 
-        @param service(jid.JID): PubSub service,
-        @param NodeIdentifier(unicode, None): node name
-           use None to create instant node (identifier will be returned by this method)
-        @param option(dict[unicode, unicode], None): node configuration options
-        @return (unicode): identifier of the created node (may be different from requested name)
+        @param service: PubSub service,
+        @param NodeIdentifier: node name use None to create instant node (identifier will
+            be returned by this method)
+        @param option: node configuration options
+        @return: identifier of the created node (may be different from requested name)
         """
         # TODO: if pubsub service doesn't hande publish-options, configure it in a second time
         return client.pubsub_client.createNode(service, nodeIdentifier, options)