code: def test_pickle(self):
      rawdata = 'Customer="WILE_E_COYOTE"; Path=/acme; Version=1'
      expected_output = "Set-Cookie: %s" % rawdata
  
      C = cookies.SimpleCookie()
      C.load(rawdata)
      self.assertEqual(C.output(), expected_output)
  
      for proto in range(pickle.HIGHEST_PROTOCOL + 1):
          with self.subTest(proto=proto):
              C1 = pickle.loads(pickle.dumps(C, protocol=proto))
              self.assertEqual(C1.output(), expected_output)
  
imports: import copy
  import unittest
  import doctest
  from http import cookies
  import pickle
label_desc: Use image node_id 13 for calling the CookieTests obj's underlying member method code with example usage: obj.test_pickle() without return types