Function gio_sys::g_dbus_connection_send_message_with_reply

pub unsafe extern "C" fn g_dbus_connection_send_message_with_reply(
    connection: *mut GDBusConnection, 
    message: *mut GDBusMessage, 
    flags: GDBusSendMessageFlags, 
    timeout_msec: c_int, 
    out_serial: *mut Volatile<u32>, 
    cancellable: *mut GCancellable, 
    callback: GAsyncReadyCallback, 
    user_data: gpointer
)