--- a/libervia/cli/call_gui.py	Tue Jun 18 12:06:45 2024 +0200
+++ b/libervia/cli/call_gui.py	Wed Jun 19 18:44:57 2024 +0200
@@ -51,14 +51,11 @@
 
 from libervia.backend.core.i18n import _
 from libervia.frontends.tools import aio, display_servers, webrtc
-gi.require_versions({
-    "Gst": "1.0",
-    "GstWebRTC": "1.0"
-})
+
+gi.require_versions({"Gst": "1.0", "GstWebRTC": "1.0"})
 from gi.repository import Gst
 
 
-
 ICON_SIZE = QSize(45, 45)
 BUTTON_SIZE = QSize(50, 50)
 running = False
@@ -389,7 +386,7 @@
             self.fullscreen_btn.setIcon(self.fullscreen_icon_normal)
             self.showNormal()
 
-    def closeEvent(self, a0: QCloseEvent|None) -> None:
+    def closeEvent(self, a0: QCloseEvent | None) -> None:
         super().closeEvent(a0)
         global running
         running = False