import { TranslocoService } from "@ngneat/transloco";
import { CaptchaRenderOptions, widgetId } from "../types";
declare global {
    interface Window {
        captchaloadedcallback?: () => void;
    }
}
export declare abstract class BaseCaptchaProvider {
    readonly translocoService: TranslocoService;
    abstract readonly name: string;
    abstract readonly url: string;
    private static loadPromise;
    private static loaded;
    abstract render(element: HTMLElement, options: CaptchaRenderOptions): widgetId;
    abstract execute(widgetId: widgetId): void;
    abstract reset(widgetId: widgetId): void;
    abstract getResponse(widgetId: widgetId): string | null;
    loadScript(): Promise<void>;
}