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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 initialize(self, init_value, context=None, force=False):
 """ Initialize the configuration manager :param force: force initialization even if it's already initialized :return: """


        if not force and self._instance is not None:
            raise ConfigurationAlreadyInitializedError(
                'Configuration manager object is already initialized.'
            )

        self.__class__._instance = Root(init_value, context=context)