code: @Override
      public DeleteSnapshotResult deleteSnapshot(DeleteSnapshotRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteSnapshot(request);
      }
docs: <p>
  Deletes a directory snapshot.
  </p>
  
  @param deleteSnapshotRequest
  Contains the inputs for the <a>DeleteSnapshot</a> operation.
  @return Result of the DeleteSnapshot operation returned by the service.
  @throws EntityDoesNotExistException
  The specified entity could not be found.
  @throws InvalidParameterException
  One or more parameters are not valid.
  @throws ClientException
  A client exception has occurred.
  @throws ServiceException
  An exception has occurred in AWS Directory Service.
  @sample AWSDirectoryService.DeleteSnapshot
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ds-2015-04-16/DeleteSnapshot" target="_top">AWS API
  Documentation</a>