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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 serialize(self, include_class=True, save_dynamic=False, **kwargs):
 """Serialize Singleton instance to a dictionary. This behaves identically to HasProperties.serialize, except it also saves the identifying name in the dictionary as well. """

        json_dict = super(Singleton, self).serialize(
            include_class=include_class,
            save_dynamic=save_dynamic,
            **kwargs
        )
        json_dict['_singleton_id'] = self._singleton_id
        return json_dict