80 struct Properties  struct
82     Properties() = delete;
83     ~Properties() = default;
84     Properties(const Properties&) = default;
85     Properties& operator=(const Properties&) = default;
86     Properties(Properties&&) = default;
87     Properties& operator=(Properties&&) = default;
88     explicit Properties(U&& handler) :  in Properties()  argument
91     Properties(const char* path, const char* intf, const char* prop,  in Properties()  argument
201     return Properties<T, U>(path, intf, prop, std::forward<U>(handler));  in propertiesChanged()
215     return Properties<T, U>(std::forward<U>(handler));  in getProperties()