import { Campaign } from '@amplitude/analytics-types';
export declare const UTM_CAMPAIGN = "utm_campaign";
export declare const UTM_CONTENT = "utm_content";
export declare const UTM_ID = "utm_id";
export declare const UTM_MEDIUM = "utm_medium";
export declare const UTM_SOURCE = "utm_source";
export declare const UTM_TERM = "utm_term";
export declare const DCLID = "dclid";
export declare const FBCLID = "fbclid";
export declare const GBRAID = "gbraid";
export declare const GCLID = "gclid";
export declare const KO_CLICK_ID = "ko_click_id";
export declare const LI_FAT_ID = "li_fat_id";
export declare const MSCLKID = "msclkid";
export declare const RDT_CID = "rdt_cid";
export declare const TTCLID = "ttclid";
export declare const TWCLID = "twclid";
export declare const WBRAID = "wbraid";
export declare const EMPTY_VALUE = "EMPTY";
export declare const BASE_CAMPAIGN: Campaign;
export declare const MKTG = "MKTG";
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