import { SubnetInfo } from 'ip';
declare type TCloudflareIPs = {
    v4?: string[];
    v6?: string[];
};
export declare class CloudflareIP {
    _timeout: any;
    _interval: number;
    v4: SubnetInfo[];
    v6: SubnetInfo[];
    constructor(options?: TCloudflareIPs);
    validate(ip: string): boolean;
    validateV4(ipV4: string): boolean;
    validateV6(ipV6: string): boolean;
    update(interval?: number, onError?: (_error: any) => void): Promise<void>;
    _update(): Promise<void>;
    destroyInterval(): void;
}
export {};