class_docstr: Test importlib.import_module.
code: def test_deep_relative_package_import(self):
      modules = ["a.__init__", "a.b.__init__", "a.c"]
      with test_util.mock_spec(*modules) as mock:
          with test_util.import_state(meta_path=[mock]):
              self.init.import_module("a")
              self.init.import_module("a.b")
              module = self.init.import_module("..c", "a.b")
              self.assertEqual(module.__name__, "a.c")
  
imports: from test.test_importlib import util
  import os.path
  import sys
  from test.support import import_helper
  from test.support import os_helper
  import types
  import unittest
label_desc: Use image node_id 4 for calling the ImportModuleTests obj's underlying member method code with example usage: obj.test_deep_relative_package_import() without return types