export declare const webPushConstants: {
    readonly DEFAULT_TTL: 2419200;
    readonly SUPPORTED_CONTENT_ENCODINGS: {
        readonly AES_128_GCM: "aes128gcm";
        readonly AES_GCM: "aesgcm";
    };
    readonly SUPPORTED_URGENCY: {
        readonly VERY_LOW: "very-low";
        readonly LOW: "low";
        readonly NORMAL: "normal";
        readonly HIGH: "high";
    };
};
export default webPushConstants;