import { NgsRevealConfig } from '../services/ngs-reveal-config';
import { NgsRevealService } from '../services/ngs-reveal.service';
/**
 * Base directive class shared by the concrete ScrollReveal directives.
 */
export declare abstract class AbstractNgsRevealDirective {
    protected ngsRevealService: NgsRevealService;
    config: NgsRevealConfig;
    constructor(ngsRevealService: NgsRevealService);
    protected _initConfig(value: string | NgsRevealConfig): void;
}