@InterfaceStability.Evolving
public class AlterConfigOp {

    public enum OpType {
        SET((byte) 0), DELETE((byte) 1), APPEND((byte) 2), SUBTRACT((byte) 3);

        private static final Map<Byte, OpType> OP_TYPES = Collections.unmodifiableMap(
                Arrays.stream(values()).collect(Collectors.toMap(OpType::id, Function.identity()))
        );

        private final byte id;

        OpType(final byte id) {
            this.id = id;
        }

        public byte id() {
            return id;
        }

        public static OpType forId(final byte id) {
            return OP_TYPES.get(id);
        }
    }

    private final ConfigEntry configEntry;
    private final OpType opType;

    public AlterConfigOp(ConfigEntry configEntry, OpType operationType) {
        this.configEntry = configEntry;
        this.opType =  operationType;
    }

    public ConfigEntry configEntry() {
        return configEntry;
    };

    public OpType opType() {
        return opType;
    };
}


public AlterConfigsResult incrementalAlterConfigs(
		Map<ConfigResource, Collection<AlterConfigOp>> configs,
        final AlterConfigsOptions options);