pub unsafe extern "C" fn _frida_g_signal_new_valist(
    signal_name: *const gchar,
    itype: GType,
    signal_flags: GSignalFlags,
    class_closure: *mut GClosure,
    accumulator: GSignalAccumulator,
    accu_data: gpointer,
    c_marshaller: GSignalCMarshaller,
    return_type: GType,
    n_params: guint,
    args: *mut __va_list_tag
) -> guint