code: def test_call_on_defined_sealed_mock_succeeds(self):
      m = mock.Mock(return_value=5)
  
      mock.seal(m)
      self.assertEqual(m(), 5)
  
imports: import unittest
  from unittest import mock
label_desc: Use image node_id 9 for calling the TestSealable obj's underlying member method code with example usage: obj.test_call_on_defined_sealed_mock_succeeds() without return types