/**
 * OpenNotebook endpoint payload definition.
 */
type OpenNotebook = {
    /**
     * UpNote notebook id.
     */
    notebookId: string;
};
/**
 * View notes in an UpNote notebook.
 *
 * @param payload OpenNotebook endpoint payload.
 * @returns UpNote openNotebook x-callback-url.
 * @example
 * openNotebook({ notebookId: 'REPLACE_WITH_NOTEBOOK_ID' })
 * // => 'upnote://x-callback-url/openNotebook?notebookId=REPLACE_WITH_NOTEBOOK_ID'
 * @link https://help.getupnote.com/resources/x-callback-url-endpoints
 */
export declare function openNotebook(payload: OpenNotebook): string;
export {};