code: def test_with_statement_as(self):
      with patch("%s.something" % __name__) as mock_something:
          self.assertEqual(something, mock_something, "unpatched")
          self.assertTrue(
              is_instance(mock_something, MagicMock),
              "patching wrong type",
          )
      self.assertEqual(something, sentinel.Something)
  
imports: import unittest
  from warnings import catch_warnings
  from test.test_unittest.testmock.support import is_instance
  from unittest.mock import MagicMock, Mock, patch, sentinel, mock_open, call
label_desc: Use image node_id 3 for calling the WithTest obj's underlying member method code with example usage: obj.test_with_statement_as() without return types