import { ActionAttribute } from '../actions/types';
/**
 * System produced attributes
 * @returns
 */
export declare const provideSystemProducedAttribute: (data: Pick<ActionAttribute, 'name' | 'datatype' | 'label' | 'description'> & {
    relId: string;
}) => ActionAttribute;
export declare const EMPTY_ATTR_GLOBAL_ID: string;
export declare const emptyAttribute: ActionAttribute;
export declare const serialize: (obj?: {}) => string;
export declare const deserialize: (str?: string) => any;