/**
 * Collect marketing-attribution params from the current page for lead capture.
 *
 * The Studio API resolves the lead's marketing source from `building_marketing_sources`
 * using these UTM params + referrer (falling back to a default website source). The
 * returned keys match the snake_case fields the prospect endpoints expect, so the result
 * can be spread directly into a request body.
 */
export interface UtmParams {
    utm_source?: string;
    utm_medium?: string;
    utm_campaign?: string;
    referrer?: string;
    tracking_url?: string;
}
export declare function collectUtmParams(): UtmParams;
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