--- a/libervia/backend/plugins/plugin_xep_0260.py	Tue Jun 18 12:06:45 2024 +0200
+++ b/libervia/backend/plugins/plugin_xep_0260.py	Wed Jun 19 18:44:57 2024 +0200
@@ -97,7 +97,9 @@
             # self._s5b.registerCandidate(candidate)
         return candidates
 
-    def _build_candidates(self, session, candidates, sid, session_hash, client, mode=None):
+    def _build_candidates(
+        self, session, candidates, sid, session_hash, client, mode=None
+    ):
         """Build <transport> element with candidates
 
         @param session(dict): jingle session data
@@ -147,7 +149,8 @@
         )  # requester and target are inversed for peer candidates
         transport_data["stream_d"] = self._s5b.register_hash(client, session_hash, None)
         candidates = transport_data["candidates"] = await self._s5b.get_candidates(
-            client, session["local_jid"])
+            client, session["local_jid"]
+        )
         mode = "tcp"  # XXX: we only manage tcp for now
         transport_elt = self._build_candidates(
             session, candidates, sid, session_hash, client, mode
@@ -155,7 +158,9 @@
 
         return transport_elt
 
-    def _proxy_activated_cb(self, iq_result_elt, client, candidate, session, content_name):
+    def _proxy_activated_cb(
+        self, iq_result_elt, client, candidate, session, content_name
+    ):
         """Called when activation confirmation has been received from proxy
 
         cf XEP-0260 § 2.4
@@ -304,7 +309,11 @@
                     )
                     args = [client, choosed_candidate, session, content_name]
                     d.addCallbacks(
-                        self._proxy_activated_cb, self._proxy_activated_eb, args, None, args
+                        self._proxy_activated_cb,
+                        self._proxy_activated_eb,
+                        args,
+                        None,
+                        args,
                     )
                 else:
                     # this Deferred will be called when we'll receive activation confirmation from other peer
@@ -356,9 +365,7 @@
                 log.warning("No cid found in <candidate-used>")
                 raise exceptions.DataError
             try:
-                candidate = next((
-                    c for c in transport_data["candidates"] if c.id == cid
-                ))
+                candidate = next((c for c in transport_data["candidates"] if c.id == cid))
             except StopIteration:
                 log.warning("Given cid doesn't correspond to any known candidate !")
                 raise exceptions.DataError  # TODO: send an error to other peer, and use better exception
@@ -433,10 +440,8 @@
             session_hash = transport_data["session_hash"] = self._s5b.get_session_hash(
                 session["local_jid"], session["peer_jid"], sid
             )
-            peer_session_hash = transport_data[
-                "peer_session_hash"
-            ] = self._s5b.get_session_hash(
-                session["peer_jid"], session["local_jid"], sid
+            peer_session_hash = transport_data["peer_session_hash"] = (
+                self._s5b.get_session_hash(session["peer_jid"], session["local_jid"], sid)
             )  # requester and target are inversed for peer candidates
             peer_candidates = transport_data["peer_candidates"] = self._parse_candidates(
                 transport_elt
@@ -505,8 +510,8 @@
     def _do_fallback(self, feature_checked, session, content_name, client):
         """Do the fallback, method called once feature is checked
 
-         @param feature_checked(bool): True if other peer can do IBB
-         """
+        @param feature_checked(bool): True if other peer can do IBB
+        """
         if not feature_checked:
             log.warning(
                 "Other peer can't manage jingle IBB, be have to terminate the session"