/**
 * Query string the embed `_renderToken` route canonicalizes via
 * `validateSearch`. Omitting any of these keys makes TanStack Router
 * 307 to a URL that includes the defaults.
 */
export declare function embedIframeSearchParams({ token, additionalFields, billingAddressRequirement, intent, }: {
    token: string;
    additionalFields?: string;
    billingAddressRequirement?: string;
    intent?: "payment" | "setup";
}): URLSearchParams;