/**
 * <p>Increase the partition count of the topics given as the keys of {@code counts}
 * according to the corresponding values.</p>
 */
public IncreasePartitionCountsResult increasePartitionCounts(Map<String, PartitionCount> counts,
                    IncreasePartitionCountsOptions options)
public IncreasePartitionCountsResult increasePartitionCounts(Map<String, PartitionCount> counts) 

/** Describes a change in a topic's partition count. */
public class PartitionCount {
    private int partitionCount;
    private List<List<Integer>> assignments;
    private PartitionCount(int partitionCount) { ... }

    /** 
     * Increase the partition count for a topic to the given {@code newCount}. 
     * The assignment of new replicas to brokers will be decided by the broker
     * but may subsequently be moved using {@link #reassignPartitions(Map)}.</p>
     */
    public static PartitionCount increasePartitionCount(int newCount) { ... }

    /** 
     * <p>Increase the partition count for a topic to the given {@code newCount} 
     * assigning the new partitions according to the given {@code newAssignments}.
     * The length of {@code newAssignments} should equal {@code newCount - oldCount}, since 
     * the assignment of existing partitions are not changed. 
     * Each inner list of {@code newAssignments} should have a length equal to 
     * the topic's replication factor. 
     * The first broker id in each inner list is the "preferred replica".</p>
     *
     * <p>For example, suppose a topic currently has a replication factor of 2, and 
     * has 3 partitions. The number of partitions can be increased to 4 
     * (with broker 1 being the preferred replica for the new partition) using a 
     * {@code PartitionCount} constructed like this:</p>
     *
     * <pre><code>PartitionCount.increasePartitionCount(4, Arrays.asList(Arrays.asList(1, 2))</code></pre>
     *
     */
    public static PartitionCount increasePartitionCount(int newCount, List<List<Integer>> newAssignments) { ... }
}
    

public class IncreasePartitionCountsOptions {
    public IncreasePartitionCountsOptions() { ... }
    public Integer timeoutMs() { ... }
    public IncreasePartitionCountsOptions timeoutMs(Integer timeoutMs) { ... }
    public boolean validateOnly() { ... }
    /**
     * Validate the request only: Do not actually change any partition counts.
     */
    public IncreasePartitionCountsOptions validateOnly() { ... }
}
 
public class IncreasePartitionCountsResult {
    // package access constructor
    Map<String, KafkaFuture<Void>> values() { ... }
    KafkaFuture<Void> all() { ... }
}

IncreasePartitionCountsRequest => [topic_partition_count] timeout
  topic_partition_count => topic partition_count
    topic => STRING
    partition_count => count [assignment]
      count => INT32
      assignment => [INT32]
  timeout => INT32

IncreasePartitionCountsResponse => throttle_time_ms [topic_partition_count_error]
  topic_partition_count_error => topic error_code error_message
    topic => STRING
    error_code => INT16
    error_message => NULLABLE_STRING