@JsonIgnore
        public boolean isAssignedTo(final RegisteredService service) {
            return isAssignedTo(service, s -> true);
        }
Check to see if the property is assigned to this service and is defined with a value.

@param service registered service
@return true/false
api/cas-server-core-api-services/src/main/java/org/apereo/cas/services/RegisteredServiceProperty.java