* resource assigned) */
static void on_veto_cb(const std::function<void(Activity&)>& cb) { on_veto.connect(cb); }
/*! Add a callback fired when the activity completes (either normally, cancelled or failed) */
* resource assigned) */
static void on_veto_cb(const std::function<void(Activity&)>& cb) { on_veto.connect(cb); }
/*! Add a callback fired when the activity completes (either normally, cancelled or failed) */