@Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append("version: ").append(getVersion());
    sb.append(" bytesRead: ").append(getBytesRead());
    sb.append(" type: ").append(getType().toString());
    sb.append(" startContinuationToken: ").append(startContinuationToken);
    sb.append(" endContinuationToken: ").append(endContinuationToken);
    sb.append(" index: ").append(index);
    sb.append(" totalItems: ").append(totalItems);
    sb.append(" cacheSessionId: ").append(cacheSessionId);
    return sb.toString();
  }
Return cacheSessionId of the current token.
@return cacheSessionId.
ambry-cloud/src/main/java/com/github/ambry/cloud/azure/CosmosChangeFeedFindToken.java