class_docstr: Subclass which represents work pieces for adversarial defenses.
docstr: Initializes DefenseWorkPieces.
code: def __init__(self, datastore_client):
      """Initializes DefenseWorkPieces."""
      super(DefenseWorkPieces, self).__init__(
          datastore_client=datastore_client,
          work_type_entity_id=ID_DEFENSES_WORK_ENTITY,
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from builtins import int
  from io import StringIO
  import pickle
  import random
  import time
  import numpy
  from six import iteritems
  from six import itervalues
  from six import text_type
label_desc: Use image node_id 1 to create a new DefenseWorkPieces object from inherited base classes: WorkPiecesBase with example: obj = DefenseWorkPieces(datastore_client)