/**
 * Capacities x-callback-url parameters.
 */
export type CapacitiesXCallback = {
    /**
     * Name of the app calling the action.
     */
    xSource?: string;
    /**
     * Deeplink URL to call if the action was successful.
     */
    xSuccess?: string;
    /**
     * Deeplink URL to call if the action failed.
     */
    xError?: string;
};
export declare function xCallbackParams(payload: CapacitiesXCallback): {
    'x-error'?: string | undefined;
    'x-success'?: string | undefined;
    'x-source'?: string | undefined;
};
export declare function xCallbackUrl(action: string, params?: Record<string, unknown>): string;