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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_default_config_directory():
 """Return default config directory, based in the actual test path :returns: default config directory """

        test_path = os.path.dirname(os.path.realpath(inspect.getouterframes(inspect.currentframe())[2][1]))
        return os.path.join(test_path, 'conf')