import { ITemplateUtility, IContext, IDelegatedParameters } from '../interfaces';
import { ActionSnapshot } from '../models';
export declare class TemplateUtilitiesRegistry {
    private registry;
    private constructor();
    private static pInstance;
    static get instance(): TemplateUtilitiesRegistry;
    static reset(): void;
    /**
     * Register template utilities
     * @param {ITemplateUtility} templateUtility
     * @return {TemplateUtilitiesRegistry}
     */
    register(...templateUtility: ITemplateUtility[]): TemplateUtilitiesRegistry;
    /**
     * Unregister template utilities
     * @param {ITemplateUtility} templateUtility
     * @return {TemplateUtilitiesRegistry}
     */
    unregister(...templateUtility: ITemplateUtility[]): TemplateUtilitiesRegistry;
    /**
     * Generate utilities for tempalte
     * @param {IContext} context action context
     * @param {ActionSnapshot} snapshot action snapshot
     * @param {IDelegatedParameters} parameters action parameters
     * @param {string} wd working directory
     * @return {{[key: string]: any}}
     */
    generateUtilities(context: IContext, snapshot: ActionSnapshot, parameters: IDelegatedParameters, wd: string): {
        [key: string]: any;
    };
    /**
     * Cleanup registry
     * @return {ActionHandlersRegistry}
     */
    cleanup(): TemplateUtilitiesRegistry;
}