code: def test_decodebytes(self):
      eq = self.assertEqual
      eq(
          base64.decodebytes(b"d3d3LnB5dGhvbi5vcmc=\n"),
          b"www.python.org",
      )
      eq(base64.decodebytes(b"YQ==\n"), b"a")
      eq(base64.decodebytes(b"YWI=\n"), b"ab")
      eq(base64.decodebytes(b"YWJj\n"), b"abc")
      eq(
          base64.decodebytes(
              b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
              b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
              b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n"
          ),
          b"abcdefghijklmnopqrstuvwxyz"
          b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
          b"0123456789!@#0^&*();:<>,. []{}",
      )
      eq(base64.decodebytes(b""), b"")
      eq(
          base64.decodebytes(b"QWxhZGRpbjpvcGVuIHNlc2FtZQ==\n"),
          b"Aladdin:open sesame",
      )
      # Non-bytes
      eq(base64.decodebytes(bytearray(b"YWJj\n")), b"abc")
      eq(base64.decodebytes(memoryview(b"YWJj\n")), b"abc")
      eq(base64.decodebytes(array("B", b"YWJj\n")), b"abc")
      self.check_type_errors(base64.decodebytes)
  
imports: import unittest
  import base64
  import binascii
  import os
  from array import array
  from test.support import os_helper
  from test.support import script_helper
label_desc: Use image node_id 3 for calling the LegacyBase64TestCase obj's underlying member method code with example usage: obj.test_decodebytes() without return types