def METHOD_NAME(self, service: Service) -> None:
    """
    Add a service to the list of services on the V4 DDO.
    :param service: To add service, Service
    """
    service.encrypt_files(self.nft_address, self.chain_id)
    logger.debug(
        f"Adding service with service type {service.type} with did {self.did}"
    )
    self.services.append(service)