code: def testDumpingDebugHookWithStatefulWatchFnWorks(self):
      watch_fn_state = {"run_counter": 0}
  
      def counting_watch_fn(fetches, feed_dict):
          del fetches, feed_dict
          watch_fn_state["run_counter"] += 1
          if watch_fn_state["run_counter"] % 2 == 1:
              # If odd-index run (1-based), watch every ref-type tensor.
              return framework.WatchOptions(
                  debug_ops="DebugIdentity",
                  tensor_dtype_regex_allowlist=".*_ref",
              )
          else:
              # If even-index run, watch nothing.
              return framework.WatchOptions(
                  debug_ops="DebugIdentity",
                  node_name_regex_allowlist=r"^$",
                  op_type_regex_allowlist=r"^$",
              )
  
      dumping_hook = hooks.DumpingDebugHook(
          self.session_root, watch_fn=counting_watch_fn
      )
      mon_sess = monitored_session._HookedSession(
          self.sess, [dumping_hook]
      )
      for _ in range(4):
          mon_sess.run(self.inc_v)
  
      dump_dirs = glob.glob(os.path.join(self.session_root, "run_*"))
      dump_dirs = sorted(
          dump_dirs,
          key=lambda x: int(os.path.basename(x).split("_")[1]),
      )
      self.assertEqual(4, len(dump_dirs))
  
      for i, dump_dir in enumerate(dump_dirs):
          self._assert_correct_run_subdir_naming(
              os.path.basename(dump_dir)
          )
          dump = debug_data.DebugDumpDir(dump_dir)
          if i % 2 == 0:
              self.assertAllClose(
                  [10.0 + 1.0 * i],
                  dump.get_tensors("v", 0, "DebugIdentity"),
              )
              self.assertNotIn(
                  "delta",
                  [
                      datum.node_name
                      for datum in dump.dumped_tensor_data
                  ],
              )
          else:
              self.assertEqual(0, dump.size)
  
          self.assertEqual(repr(self.inc_v), dump.run_fetches_info)
          self.assertEqual(repr(None), dump.run_feed_keys_info)
  
imports: import glob
  import os
  import tempfile
  import threading
  from tensorflow.python.client import session
  from tensorflow.python.debug.lib import debug_data
  from tensorflow.python.debug.wrappers import dumping_wrapper
  from tensorflow.python.debug.wrappers import framework
  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 ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.lib.io import file_io
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import state_ops
  from tensorflow.python.ops import variable_v1
  from tensorflow.python.platform import gfile
  from tensorflow.python.platform import googletest
  from tensorflow.python.training import monitored_session
label_desc: Use image node_id 16 for calling the DumpingDebugWrapperSessionTest obj's underlying member method code with example usage: obj.testDumpingDebugHookWithStatefulWatchFnWorks() and returns: framework, framework