export declare enum UtmParamEnum {
    Source = "utm_source",
    Medium = "utm_medium",
    Campaign = "utm_campaign",
    Content = "utm_content",
    Name = "utm_name",
    Term = "utm_term",
    InitialSource = "initial_utm_source",
    InitialMedium = "initial_utm_medium",
    InitialCampaign = "initial_utm_campaign",
    InitialContent = "initial_utm_content",
    InitialName = "initial_utm_name",
    InitialTerm = "initial_utm_term",
    Gclid = "gclid"
}
export type UtmParams = Partial<Record<UtmParamEnum, string>>;
/** Its instance allows you to deal with UTM parameters */
export declare class UtmSynapse {
    static readonly StorageKey: string;
    protected readonly storage: Storage | null;
    constructor();
    /** Extract UTM parameters from a URL or by default `window.location.href` */
    parse(url?: string): UtmParams | null;
    /** Save UTM parameters for later usage */
    save(params: UtmParams): void;
    /** Load any UTM parameter in the storage */
    load(): UtmParams | null;
    /** Clear the storage of any UTM parameter */
    clear(): void;
    /** Remove UTM parameters from an URL  */
    trimUrl(url: string): string;
    /**
     * Will ask the browser to remove UTM parameters without reloading the page.
     * Can be useful to avoid users doing copy/paste with UTM parameters
     *
     * Tip: you should save parameters before doing this (because they would be lost otherwise)
     * Note: if the history browser feature is not accessible it won't work
     */
    cleanDisplayedUrl(): void;
    /**
     * Will add provided parameters to the URL
     *
     * Note: in case the URL already contains one of those parameters already, we remove all the original ones before patching (to not mix different analytics sessions)
     */
    setIntoUrl(url: string, params: UtmParams): string;
}
/** Default global instance for the ease of use */
export declare const utmSynapse: UtmSynapse;