code: def setUp(self):
      super(BidirectionalAttentionFlowTest, self).setUp()
      self.set_up_model(
          self.FIXTURES_ROOT / "bidaf" / "experiment.json",
          self.FIXTURES_ROOT / "data" / "squad.json",
      )
  
imports: from __future__ import with_statement
  from __future__ import division
  from __future__ import absolute_import
  from flaky import flaky
  import pytest
  import numpy
  from numpy.testing import assert_almost_equal
  import torch
  from allennlp.common import Params
  from allennlp.common.checks import ConfigurationError
  from allennlp.common.testing import ModelTestCase
  from allennlp.data import DatasetReader, Vocabulary
  from allennlp.data.dataset import Batch
  from allennlp.models import BidirectionalAttentionFlow, Model
label_desc: Use image node_id 1 for calling the BidirectionalAttentionFlowTest obj's underlying member method code with example usage: obj.setUp() without return types