class_docstr: Base class for bAbi question answering problems.
class_docstr_tok: ["Base","class","for","bAbi","question","answering","problems","."]
code: def joint_training(self):
      # training on data from all tasks.
      return True
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  import os
  import shutil
  import tarfile
  import requests
  import six
  from tensor2tensor.data_generators import problem
  from tensor2tensor.data_generators import text_encoder
  from tensor2tensor.data_generators import text_problems
  from tensor2tensor.data_generators import tokenizer
  from tensor2tensor.layers import modalities
  from tensor2tensor.utils import metrics
  from tensor2tensor.utils import registry
  import tensorflow.compat.v1
label_desc: Use image node_id 8 for calling the BabiQa obj's underlying member method code with example usage: obj.joint_training() and returns: True