code: def setUp(self):
      self.session_root = tempfile.mkdtemp()
  
      self.v = variables.Variable(10.0, dtype=dtypes.float32, name="v")
      self.delta = constant_op.constant(
          1.0, dtype=dtypes.float32, name="delta"
      )
      self.eta = constant_op.constant(
          -1.4, dtype=dtypes.float32, name="eta"
      )
      self.inc_v = state_ops.assign_add(
          self.v, self.delta, name="inc_v"
      )
      self.dec_v = state_ops.assign_add(self.v, self.eta, name="dec_v")
  
      self.sess = session.Session()
      self.sess.run(self.v.initializer)
  
file_path: tensorflow-upstream/tensorflow/python/debug/wrappers/disk_usage_test.py
imports: import os
  import tempfile
  from tensorflow.python.client import session
  from tensorflow.python.debug.wrappers import dumping_wrapper
  from tensorflow.python.debug.wrappers import hooks
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import state_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import googletest
  from tensorflow.python.training import monitored_session
label_desc: Use image node_id 2 for calling the DumpingDebugWrapperDiskUsageLimitTest obj's underlying member method code with example usage: obj.setUp() without return types