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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_contact_notes( self, obj_id, search='', start=0, limit=0, order_by='', order_by_dir='ASC' ):
 """ Get a list of a contact's notes :param obj_id: int Contact ID :param search: str :param start: int :param limit: int :param order_by: str :param order_by_dir: str :return: dict|str """


        parameters = {
            'search': search,
            'start': start,
            'limit': limit,
            'orderBy': order_by,
            'orderByDir': order_by_dir,
        }
        response = self._client.session.get(
            '{url}/{id}/notes'.format(
                url=self.endpoint_url, id=obj_id
            ),
            params=parameters
        )
        return self.process_response(response)