Name of method to invoke.
A #GVariant tuple with parameters for the signal or null if not passing parameters.
Flags from the #GDBusCallFlags enumeration.
The timeout in milliseconds (with G_MAXINT meaning "infinite") or -1 to use the proxy default timeout.
A #GUnixFDList or null.
A #GCancellable or null.
A #GAsyncReadyCallback to call when the request is satisfied or null if you don't care about the result of the method invocation.
Like gio.dbus_proxy.DBusProxy.call but also takes a #GUnixFDList object.
This method is only available on UNIX.