export declare const USER_IPV4_STORAGE_KEY = "klevu-user-v4-id";
export declare const USER_IPV6_STORAGE_KEY = "klevu-user-v6-id";
export declare const USER_IP_EXPIRY_STORAGE_KEY = "klevu-user-v4-v6-expiry";
export declare const USER_UUID_STORAGE_KEY = "klevu-user-uuid";
export declare class KlevuIpResolver {
    timer: null | ReturnType<typeof setTimeout>;
    static default: KlevuIpResolver | undefined;
    expiry?: string | null;
    ipv4?: string | null;
    ipv6?: string | null;
    uuid?: string | null;
    constructor();
    static init(): void;
    static getDefault(): KlevuIpResolver;
    hasIPInfoExpired(): boolean;
    generateIPData(): Promise<void>;
    setExpiryTimer(): void;
    getIPData: () => Promise<{
        uuid: string;
        ipv4: string;
        ipv6: string;
    }>;
    getUserData(): {
        ipv4?: undefined;
        ipv6?: undefined;
        uuid?: undefined;
    } | {
        ipv4: string;
        ipv6: string;
        uuid: string;
    };
}