import { IGoogleService } from "./IGoogleService";
export declare class GoogleService implements IGoogleService {
    private static readonly googleAPIUrl;
    private static readonly googleAPITokenInfoAccessTokenURL;
    private static readonly googleAPIUserInfoAccessTokenURL;
    private static readonly googleAPITokenInfoIdTokenURL;
    private googleClientId;
    private packageId;
    private publicKeyString;
    init(request: {
        googleClientId: string;
        packageId: string;
        publicRSAKey: string;
    }): void;
    verifyGoogleTokenViaAccessToken(accessToken: string): Promise<{
        [k: string]: any;
    }>;
    verifyGoogleTokenViaIdToken(idToken: string): Promise<{
        [k: string]: any;
    }>;
    validateReceipt(payload: string): Promise<{
        success: boolean;
        productId?: string;
    }>;
    private androidValidationReceipt;
    private generateFormattedPublickey;
}