code: def testVerifySameCoreCount(self):
      self.assertEqual(
          resolver.TPUClusterResolver._verify_and_return_same_core_count(
              {0: [0, 1, 2, 3, 4, 5, 6, 7]}
          ),
          8,
      )
      self.assertEqual(
          resolver.TPUClusterResolver._verify_and_return_same_core_count(
              {0: [0, 1], 1: [2, 3]}
          ),
          2,
      )
      with self.assertRaises(RuntimeError):
          resolver.TPUClusterResolver._verify_and_return_same_core_count(
              {0: [0], 1: [1, 2]}
          )
  
imports: import os
  import six
  from six.moves.urllib.error import URLError
  from tensorflow.core.protobuf.tpu import topology_pb2
  from tensorflow.python.client import session
  from tensorflow.python.distribute.cluster_resolver.tpu import tpu_cluster_resolver
  from tensorflow.python.eager import context
  from tensorflow.python.framework import config
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import test
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.training import server_lib
  from tensorflow.python.util import compat
label_desc: Use image node_id 26 for calling the TPUClusterResolverTest obj's underlying member method code with example usage: obj.testVerifySameCoreCount() without return types