class_docstr: Tests for DebugIdentityV2Op: when DebugEventsWriter is initialized.
  
  DebugEventsWriter being initialized prior to DebugIdentityV2 ops being invoked
  for the first time is the typical case (e.g., tfdbg2 running on a local
  machine with only local devices.)
class_docstr_tok: ["Tests","for","DebugIdentityV2Op",":","when","DebugEventsWriter","is","initialized",".","DebugEventsWriter","being","initialized","prior","to","DebugIdentityV2","ops","being","invoked","for","the","first","time","is","the","typical","case","(","e.g.",",","tfdbg2","running","on","a","local","machine","with","only","local","devices",".",")"]
code: def tearDown(self):
      self.writer.Close()
      super(DebugIdentityV2OpTest, self).tearDown()
  
imports: import os
  import numpy
  from tensorflow.core.protobuf import debug_event_pb2
  from tensorflow.python.debug.lib import debug_events_reader
  from tensorflow.python.debug.lib import debug_events_writer
  from tensorflow.python.debug.lib import dumping_callback_test_lib
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_util
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gen_debug_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 2 for calling the DebugIdentityV2OpTest obj's underlying member method code with example usage: obj.tearDown() without return types