code: def testInitializeMultiElementTpuArray(self):
      with self.assertRaisesRegex(
          NotImplementedError,
          "Using multiple TPUs in a single session is not yet implemented",
      ):
          client.Client(tpu=["multiple", "elements"])
  
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 15 for calling the CloudTpuClientTest obj's underlying member method code with example usage: obj.testInitializeMultiElementTpuArray() without return types