export declare const WHATSAPP_HANDOFF_CTA_ID = "whatsapp-handoff";
type WhatsAppHandoffProposal = {
    id: string;
    action: string;
    href?: string;
};
type WhatsAppHandoffContext = {
    assistantName: string;
    pageTitle: string;
    pageUrl: string;
    latestUserMessage: string;
    template: string;
};
/**
 * The page the visitor was on, without its query string or fragment. The text
 * leaves for WhatsApp, a third party, and a query can carry a reset token, an
 * email in a UTM tag, or a session id the host page put there.
 */
export declare function shareablePageUrl(pageUrl: string): string;
export declare function buildWhatsAppHandoffText({ assistantName, pageTitle, pageUrl, latestUserMessage, template, }: WhatsAppHandoffContext): string;
export declare function buildWhatsAppHandoffHref(proposal: WhatsAppHandoffProposal, context: WhatsAppHandoffContext): string | undefined;
export {};