verb(instance.verb()); Optional<String> keyOptional = instance.key(); if (keyOptional.isPresent()) { key(keyOptional); Optional<String> valueOptional = instance.value(); if (valueOptional.isPresent()) { value(valueOptional); Optional<Long> flagsOptional = instance.flags(); if (flagsOptional.isPresent()) { flags(flagsOptional); Optional<BigInteger> indexOptional = instance.index(); if (indexOptional.isPresent()) { index(indexOptional); Optional<String> sessionOptional = instance.session(); if (sessionOptional.isPresent()) { session(sessionOptional);