code: def teardown_method(self):
      rmtree(self.tmpdir)
      del self.ds
  
imports: import os
  import pytest
  from tempfile import mkdtemp, mkstemp, NamedTemporaryFile
  from shutil import rmtree
  import numpy.lib._datasource
  from numpy.testing import assert_, assert_equal, assert_raises
  import urllib.request
  from urllib.parse import urlparse
  from urllib.error import URLError
label_desc: Use image node_id 2 for calling the TestDataSourceExists obj's underlying member method code with example usage: obj.teardown_method() without return types