virtual std::pair<aid_t, double> next_transition() const = 0;
virtual void execute_next(aid_t aid, RemoteApp& app) = 0;
virtual void consider_best() = 0;
virtual std::pair<aid_t, double> next_transition() const = 0;
virtual void execute_next(aid_t aid, RemoteApp& app) = 0;
virtual void consider_best() = 0;