code: def testNoModuleAttachments(self):
      meta_graph = meta_graph_pb2.MetaGraphDef()
      with tf.Graph().as_default():
          # No calls to attach_bytes.
          saved_model_lib._export_module_attachments(meta_graph)
      actual = saved_model_lib.get_attached_bytes_map(meta_graph)
      self.assertDictEqual({}, actual)
      # Check there were no unwarranted subscript operations.
      self.assertNotIn(
          saved_model_lib.ATTACHMENT_COLLECTION_SAVED,
          meta_graph.collection_def,
      )
  
imports: import copy
  import os
  from absl import logging
  import tensorflow
  from tensorflow_hub import saved_model_lib
  from tensorflow.core.protobuf import meta_graph_pb2
label_desc: Use image node_id 10 for calling the SavedModelLibTest obj's underlying member method code with example usage: obj.testNoModuleAttachments() without return types