import { EventEmitter, Injector } from '@angular/core';
import { GptConfig } from '../gpt.config';
import { ParseDurationService } from '.';
import * as i0 from "@angular/core";
export declare class GptRefreshService {
    private config;
    private inject;
    private parseDuration;
    refreshEvent: EventEmitter<any>;
    private refreshSlots;
    private singleRequest;
    private intervals;
    constructor(config: GptConfig, inject: Injector, parseDuration: ParseDurationService);
    slotRefresh(slot: any, refreshInterval?: number | string, initRefresh?: boolean): Promise<any>;
    cancelInterval(slot: any): this;
    private hasSlotInterval;
    private refresh;
    private addSlotInterval;
    private slotIntervalKey;
    private validateInterval;
    hiddenCheck(element: any): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<GptRefreshService, [{ optional: true; }, null, null]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<GptRefreshService>;
}