45 struct TelemetryCallback {  struct
49     TelemetryCallback() {}  in TelemetryCallback()  function
50     explicit TelemetryCallback(const std::shared_ptr<ICarTelemetryCallback>& cb) : callback(cb) {}  in TelemetryCallback()  function
51     explicit TelemetryCallback(const CallbackConfig& cfg,  in TelemetryCallback()  argument
55     TelemetryCallback(const TelemetryCallback& other) = default;
56     TelemetryCallback& operator=(const TelemetryCallback& other) = default;  argument
58     TelemetryCallback(TelemetryCallback&& other) = default;
59     TelemetryCallback& operator=(TelemetryCallback&& other) = default;  argument
62     bool operator==(const TelemetryCallback& other) const {
68         size_t operator()(const TelemetryCallback& tc) const {  in operator()  argument
199     std::unordered_set<TelemetryCallback, TelemetryCallback::HashFunction> mCallbacks
205                        std::unordered_set<TelemetryCallback, TelemetryCallback::HashFunction>>