@Override
  public void fromData(DataInput in) throws IOException, ClassNotFoundException {
    timeout = in.readInt();
    action = DataSerializer.readObject(in);

  }
Returns a string representation of this <code>ExpirationAttributes</code>. If the timeout is
zero, returns <code>"NO EXPIRATION"</code>.

@return the String representation of this expiration attribute
geode-core/src/main/java/org/apache/geode/cache/ExpirationAttributes.java