code: def testServeStackFrames(self):
      _generate_tfdbg_v2_data(self.logdir)
      run = self._getExactlyOneRun()
      response = self.server.get(
          _ROUTE_PREFIX + "/execution/data?run=%s&begin=0&end=1" % run
      )
      data = json.loads(response.get_data())
      stack_frame_ids = data["executions"][0]["stack_frame_ids"]
      self.assertIsInstance(stack_frame_ids, list)
      self.assertTrue(stack_frame_ids)
  
      response = self.server.get(
          _ROUTE_PREFIX
          + "/stack_frames/stack_frames?run=%s&stack_frame_ids=%s"
          % (run, ",".join(stack_frame_ids))
      )
      self.assertEqual(200, response.status_code)
      self.assertEqual(
          "application/json", response.headers.get("content-type")
      )
      data = json.loads(response.get_data())
      self.assertIsInstance(data, dict)
      stack_frames = data["stack_frames"]
      self.assertIsInstance(stack_frames, list)
      self.assertLen(stack_frames, len(stack_frame_ids))
      for item in stack_frames:
          self.assertIsInstance(item, list)
          self.assertLen(
              item, 4
          )  # [host_name, file_path, lineno, function].
          self.assertEqual(item[0], _HOST_NAME)
          self.assertIsInstance(item[1], str)
          self.assertTrue(item[1])
          self.assertIsInstance(item[2], int)
          self.assertGreaterEqual(item[2], 1)
          self.assertIsInstance(item[3], str)
          self.assertTrue(item[3])
      # Assert that the current file and current function should be in the
      # stack frames.
      frames_for_this_function = list(
          filter(
              lambda frame: frame[0] == _HOST_NAME
              and frame[1] == _CURRENT_FILE_FULL_PATH
              and frame[3] == "testServeStackFrames",
              stack_frames,
          )
      )
      self.assertLen(frames_for_this_function, 1)
  
imports: import collections
  import json
  import os
  import socket
  import threading
  import tensorflow
  from werkzeug import test
  from werkzeug import wrappers
  from tensorboard.backend import application
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.debugger_v2 import debug_data_multiplexer
  from tensorboard.plugins.debugger_v2 import debugger_v2_plugin
label_desc: Use image node_id 46 for calling the DebuggerV2PluginTest obj's underlying member method code with example usage: obj.testServeStackFrames() without return types