import { Plugin, PluginOptions, PluginClass } from './BasePlugin';
export declare class CoveoLinkParam {
    static readonly cvo_cid: string;
    private static readonly expirationTime;
    readonly clientId: string;
    readonly creationDate: number;
    constructor(clientId: string, timestamp: number);
    toString(): string;
    get expired(): boolean;
    validate(referrerString: string, referrerList: string[]): boolean;
    private matchReferrer;
    static fromString(input: string): CoveoLinkParam | null;
}
export declare class LinkPlugin extends Plugin {
    static readonly Id = "link";
    constructor({ client, uuidGenerator }: PluginOptions);
    getApi(name: string): Function | null;
    decorate(urlString: string): Promise<string>;
    acceptFrom(acceptedReferrers: string[]): void;
}
export declare const Link: PluginClass;