/// <reference types="grecaptcha" />
import { Observable } from "rxjs";
import { RecaptchaLoaderOptions } from "./tokens";
import * as i0 from "@angular/core";
export declare class RecaptchaLoaderService {
    private readonly platformId;
    /**
     * @internal
     * @nocollapse
     */
    private static ready;
    ready: Observable<ReCaptchaV2.ReCaptcha>;
    /** @internal */
    private language?;
    /** @internal */
    private baseUrl?;
    /** @internal */
    private nonce?;
    /** @internal */
    private v3SiteKey?;
    /** @internal */
    private options?;
    constructor(platformId: Object, language?: string, baseUrl?: string, nonce?: string, v3SiteKey?: string, options?: RecaptchaLoaderOptions);
    /** @internal */
    private init;
    static ɵfac: i0.ɵɵFactoryDeclaration<RecaptchaLoaderService, [null, { optional: true; }, { optional: true; }, { optional: true; }, { optional: true; }, { optional: true; }]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<RecaptchaLoaderService>;
}