code: def setUp(self):
      self._embedding_file_path = os.path.join(
          self.get_temp_dir(), "mock_embedding_file.txt"
      )
      with tf.gfile.GFile(self._embedding_file_path, mode="w") as f:
          f.write(_MOCK_EMBEDDING)
  
file_path: hub/examples/text_embeddings/export_test.py
imports: import logging
  import os
  from distutils.version import LooseVersion
  import numpy
  import tensorflow.compat.v1
  import tensorflow_hub
  from examples.text_embeddings import export
label_desc: Use image node_id 1 for calling the ExportTokenEmbeddingTest obj's underlying member method code with example usage: obj.setUp() without return types