Comment 6 for bug 1760092

/usr/lib/python3/dist-packages/dbus$ connection.py

551 def call_async(self, bus_name, object_path, dbus_interface, method,
552 signature, args, reply_handler, error_handler,
553 timeout=-1.0, byte_arrays=False,
554 require_main_loop=True, **kwargs):

Best regards

Battant