*/
public Registration<DataReader<P, D>> registerOperationalReader(P path, DataReader<P, D> reader) {
OperationalDataReaderRegistration<P, D> ret = new OperationalDataReaderRegistration<>(path, reader);
*/
public Registration<DataReader<P, D>> registerOperationalReader(P path, DataReader<P, D> reader) {
OperationalDataReaderRegistration<P, D> ret = new OperationalDataReaderRegistration<>(path, reader);