code: def setUp(self):
      self.rng = np.random.RandomState(0)
      self.data_dir = pt.join("data", "test_d3viz")
  
file_path: Theano/theano/d3viz/tests/test_d3viz.py
imports: from __future__ import absolute_import, print_function, division
  import numpy
  import os.path
  import tempfile
  import unittest
  import filecmp
  import theano
  import theano.d3viz
  from theano.d3viz.tests import models
  from nose.plugins.skip import SkipTest
  from theano.d3viz.formatting import pydot_imported, pydot_imported_msg
label_desc: Use image node_id 1 for calling the TestD3Viz obj's underlying member method code with example usage: obj.setUp() without return types