class_docstr: OSS Filesystem Tests
code: def tearDownClass(cls):  # pylint: disable=invalid-name
      gfile.DeleteRecursively(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 2 for calling the OSSFSTest obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types