code: def test_open_template(self, filename=None, protocol=None):
      os.mkdir(self.dirname)
      self.addCleanup(os_helper.rmtree, self.dirname)
      s = shelve.open(
          filename=filename if filename is not None else self.fn,
          protocol=protocol,
      )
      try:
          s["key1"] = (1, 2, 3, 4)
          self.assertEqual(s["key1"], (1, 2, 3, 4))
      finally:
          s.close()
  
imports: import unittest
  import dbm
  import shelve
  import pickle
  import os
  from test.support import os_helper
  from collections.abc import MutableMapping
  from test.test_dbm import dbm_iterator
  from test import mapping_tests
label_desc: Use image node_id 2 for calling the TestCase obj's underlying member method code with example usage: obj.test_open_template(filename, protocol) without return types