code: def setUp(self):
      self._test_dir = tempfile.mkdtemp()
      self._dummy_action = np.array(
          [0, 0, 0, 0, 0, 0, 0], dtype=np.intc
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import shutil
  import six
  import tempfile
  from absl.testing import absltest
  import numpy
  import deepmind_lab
label_desc: Use image node_id 1 for calling the LevelCacheTest obj's underlying member method code with example usage: obj.setUp() without return types