code: def testCheckPointStateFailsWhenIncomplete(self):
      save_dir = self._get_test_dir(
          "checkpoint_state_fails_when_incomplete"
      )
      os.chdir(save_dir)
      ckpt_path = os.path.join(save_dir, "checkpoint")
      ckpt_file = open(ckpt_path, "w")
      ckpt_file.write("")
      ckpt_file.close()
      with self.assertRaises(ValueError):
          checkpoint_management.get_checkpoint_state(save_dir)
  
imports: import contextlib
  import os
  import pathlib
  import shutil
  import tempfile
  from google.protobuf import text_format
  from tensorflow.core.protobuf import saver_pb2
  from tensorflow.python.checkpoint import checkpoint
  from tensorflow.python.checkpoint import checkpoint_management
  from tensorflow.python.eager import context
  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 variables
  from tensorflow.python.platform import gfile
  from tensorflow.python.platform import test
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.training import saver
  from tensorflow.python.training.checkpoint_state_pb2 import CheckpointState
label_desc: Use image node_id 8 for calling the CheckpointStateTest obj's underlying member method code with example usage: obj.testCheckPointStateFailsWhenIncomplete() without return types