static bool notify_multiple(void *user_data)
{
	struct bt_gatt_server *server = user_data;

	bt_att_send(server->att, BT_ATT_OP_HANDLE_NFY_MULT,
			server->nfy_mult->pdu, server->nfy_mult->offset, NULL,
			NULL, NULL);

	free(server->nfy_mult->pdu);
	free(server->nfy_mult);
	server->nfy_mult = NULL;

	return false;
}
static bool notify_multiple(void *user_data)
{
	struct bt_gatt_server *server = user_data;

	bt_att_send(server->att, BT_ATT_OP_HANDLE_NFY_MULT,
			server->nfy_mult->pdu, server->nfy_mult->offset, NULL,
			NULL, NULL);

	free(server->nfy_mult->pdu);
	free(server->nfy_mult);
	server->nfy_mult = NULL;

	return false;
}