code: def testUnexpectedFiletypeType(self):
      with self.assertRaises(ValueError):
          datasets.StreamingFilesDataset(
              os.path.join(self.get_temp_dir(), "*"), filetype=3
          )
  
imports: import os
  from tensorflow.core.protobuf import cluster_pb2
  from tensorflow.core.protobuf import config_pb2
  from tensorflow.python.client import session
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.ops import readers
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.lib.io import python_io
  from tensorflow.python.platform import test
  from tensorflow.python.tpu import datasets
  from tensorflow.python.training import server_lib
  from tensorflow.python.util import compat
label_desc: Use image node_id 8 for calling the DatasetsTest obj's underlying member method code with example usage: obj.testUnexpectedFiletypeType() without return types