code: def baseConfigureTpuVersion(self):
      tpu_map = {
          "projects/test-project/locations/us-central1-c/nodes/tpu_name": {
              "state": "READY",
              "networkEndpoints": [
                  {"ipAddress": "1.2.3.4"},
                  {"ipAddress": "5.6.7.8"},
              ],
          }
      }
      return client.Client(
          tpu="tpu_name",
          project="test-project",
          zone="us-central1-c",
          service=self.mock_service_client(tpu_map=tpu_map),
      )
  
imports: import datetime
  import json
  import os
  import time
  import urllib
  from absl import flags
  from tensorflow.python.platform import test
  from tensorflow.python.tpu.client import client
label_desc: Use image node_id 39 for calling the CloudTpuClientTest obj's underlying member method code with example usage: obj.baseConfigureTpuVersion() and returns: client