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public class OffsetAndMetadata {
 
  // This class fieldwill encodesencode leader_epoch and partition_epoch. UserIt shouldcan notbe needevolved to interpret this value.
  private final OffsetEpoch offsetEpoch;
 
  ... encode more information in the future.
public class OffsetEpoch {
 
  static OffsetEpoch decode(byte[]);
 
  public byte[] encode();
 
  public String toString();
 
  public int partitionEpoch();
 
  public int leaderEpoch();
 
  public OffsetEpoch(int partitionEpoch, int leaderEpoch);
 
}
 
public class OffsetAndOffsetEpoch {
 
  public OffsetAndOffsetEpoch(long offset, OffsetEpoch offsetEpoch);
 
  public OffsetEpoch offsetEpoch();
 
  public long offset();
 
}