import { Middleware } from '../middleware';
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"
}
export declare type UtmParam = UtmParamEnum.Source | UtmParamEnum.Medium | UtmParamEnum.Campaign | UtmParamEnum.Content | UtmParamEnum.Name | UtmParamEnum.Term | UtmParamEnum.InitialSource | UtmParamEnum.InitialMedium | UtmParamEnum.InitialCampaign | UtmParamEnum.InitialContent | UtmParamEnum.InitialName | UtmParamEnum.InitialTerm;
export interface SetUtmParametersOptions {
    forceIfPresent?: boolean;
    params: Partial<Record<UtmParam, string>>;
}
/** UTM middleware to inject predefined parameters into links depending on options */
export declare function SetUtmParametersMiddleware(options: SetUtmParametersOptions): Middleware;
export {};