code: def test_rfc2043_auto_decoded_and_emailmessage_used(self):
      m = message_from_string(
          textwrap.dedent(
              """\
              Subject: Ayons asperges pour le =?utf-8?q?d=C3=A9jeuner?=
              From: =?utf-8?q?Pep=C3=A9?= Le Pew <pepe@example.com>
              To: "Penelope Pussycat" <"penelope@example.com">
              MIME-Version: 1.0
              Content-Type: text/plain; charset="utf-8"
  
              sample text
              """
          ),
          policy=policy.default,
      )
      self.assertEqual(m["subject"], "Ayons asperges pour le déjeuner")
      self.assertEqual(m["from"], "Pepé Le Pew <pepe@example.com>")
      self.assertIsInstance(m, EmailMessage)
  
imports: import unittest
  import textwrap
  from email import policy, message_from_string
  from email.message import EmailMessage, MIMEPart
  from test.test_email import TestEmailBase, parameterize
label_desc: Use image node_id 2 for calling the Test obj's underlying member method code with example usage: obj.test_rfc2043_auto_decoded_and_emailmessage_used() without return types