class CHG_TARIFF_NOTIFIER : public PropertyNotifierBase<std::string> {
public:
explicit CHG_TARIFF_NOTIFIER(UserImpl * u) : user(u) {}
class CHG_TARIFF_NOTIFIER : public PropertyNotifierBase<std::string> {
public:
explicit CHG_TARIFF_NOTIFIER(UserImpl * u) : user(u) {}