class_docstr: OSS Filesystem Tests
code: def setUpClass(cls):  # pylint: disable=invalid-name
      global get_oss_path
      get_oss_path = lambda p: os.path.join(
          "oss://%s\x01id=%s\x02key=%s\x02host=%s"
          % (bucket, access_id, access_key, host),
          "oss_fs_test",
          p,
      )
      gfile.MkDir(get_oss_path(""))
  
imports: import os
  import unittest
  from tensorflow.python.framework import errors
  from tensorflow.python.lib.io import file_io
  from tensorflow.python.platform import test
  from tensorflow.python.platform import gfile
  import tensorflow
  import tensorflow_io
label_desc: Use image node_id 1 for calling the OSSFSTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types