/**
 * Open search command payload definition.
 */
type OpenSearch = {
    /**
     * The search query.
     *
     * @example '#Important'
     */
    query?: string;
    /**
     * Open in a separate window (New in Agenda 18.0).
     */
    separateWindow?: boolean;
};
/**
 * Open a search optionally with a query.
 *
 * @param payload Open search command payload.
 * @returns Agenda open search URL.
 * @example
 * openSearch({ query: '#Important' })
 * // => 'agenda://x-callback-url/open-search?query=%23Important'
 * @example
 * openSearch({})
 * // => 'agenda://x-callback-url/open-search'
 * @example
 * openSearch({ query: 'meeting', separateWindow: true })
 * // => 'agenda://x-callback-url/open-search?query=meeting&separate-window=true'
 * @link https://agenda.community/t/x-callback-url-support-and-reference/27253
 */
export declare function openSearch(payload?: OpenSearch): string;
export {};