/* (non-Javadoc)
  * @see com.google.wave.api.OperationQueue#importAttachment(org.waveprotocol.wave.model.id.WaveId, org.waveprotocol.wave.model.id.WaveletId, org.waveprotocol.wave.media.model.AttachmentId, com.google.wave.api.impl.RawAttachmentData)
  */
 @Override
 public void importAttachment(
     WaveId waveId,
     WaveletId waveletId,
     AttachmentId attachmentId,
     RawAttachmentData attachmentData) {
   appendOperation(
       OperationType.ROBOT_IMPORT_ATTACHMENT,
       waveId,
       waveletId,
       null,
       Parameter.of(ParamsProperty.ATTACHMENT_ID, attachmentId.serialise()),
       Parameter.of(ParamsProperty.ATTACHMENT_DATA, attachmentData));
 }
 /* (non-Javadoc)
  * @see com.google.wave.api.OperationQueue#exportAttachment(org.waveprotocol.wave.media.model.AttachmentId)
  */
 @Override
 public void exportAttachment(AttachmentId attachmentId) {
   appendOperation(
       OperationType.ROBOT_EXPORT_ATTACHMENT,
       Parameter.of(ParamsProperty.ATTACHMENT_ID, attachmentId.serialise()));
 }