import { Protocol } from "./enum/proto.enum";
export interface ExistingRule {
    id: number;
}
/**
 * @class Rule
 * @author @Timo972
 */
export declare class Rule {
    private _id?;
    private _from?;
    private _to?;
    private _port?;
    private _proto?;
    /**
     * @param {number} _id WARNING: Do not pass something here!!! Only used internally.
     */
    constructor(_id?: number);
    /**
     *
     * @param {string} ip ipv4 or ipv6 address
     * @returns {Rule}
     */
    to(ip: string): Rule;
    /**
     *
     * @param {string} ip ipv4 or ipv6 address
     * @returns {Rule}
     */
    from(ip: string): Rule;
    /**
     *
     * @param {Protocol} protocol can be any, tcp, udp
     * @returns {Rule}
     */
    proto(proto: Protocol): Rule;
    /**
     *
     * @param {number} port from 0-65535
     * @returns {Rule}
     */
    port(port: number): Rule;
    /**
     *
     * @returns {number}
     */
    getPort(): number | undefined;
    /**
     *
     * @returns {Protocol}
     */
    getProtocol(): Protocol;
    /**
     *
     * @returns {string}
     */
    getFrom(): string | undefined;
    /**
     *
     * @returns {string}
     */
    getTo(): string | undefined;
    /**
     * function returns undefined if you have created this rule
     * @returns {number} rule id
     */
    getId(): number | undefined;
    toJSON(): string;
    buildUfwCommand(): string;
}