invokes TouchWorksMagicConstants.ACTION_GET_ENCOUNTER_LIST_FOR_PATIENT action
        :return: JSON response

def get_patients_locations(self, patient_id):
        """
        invokes TouchWorksMagicConstants.ACTION_GET_ENCOUNTER_LIST_FOR_PATIENT action
        :return: JSON response
        """
        doc_xml = "<docParams><item name='User' value='@@USER@@'/></docParams>"
        doc_xml = doc_xml.replace("@@USER@@", str(patient_id))
        magic = self._magic_json(
            action=TouchWorksMagicConstants.ACTION_GET_PATIENT_LOCATIONS,
            parameter1=doc_xml)
        response = self._http_request(TouchWorksEndPoints.MAGIC_JSON, data=magic)
        result = self._get_results_or_raise_if_magic_invalid(
            magic,
            response,
            TouchWorksMagicConstants.RESULT_GET_PATIENT_LOCATIONS)
        return result