code: def test_b_invalid_bytes_ignored_with_defect(self):
      self._test(
          "=?us-ascii?b?dm\x01k===?=",
          "vi",
          defects=[errors.InvalidBase64CharactersDefect],
      )
  
imports: import unittest
  from email import _encoded_words
  from email import errors
  from test.test_email import TestEmailBase
label_desc: Use image node_id 10 for calling the TestDecode obj's underlying member method code with example usage: obj.test_b_invalid_bytes_ignored_with_defect() without return types