/**
 * OpenTask action payload definition.
 */
type OpenTask = {
    /**
     * Title of the task to open, case insensitive.
     */
    title: string;
    identifier?: never;
} | {
    /**
     * Identifier of the item.
     */
    identifier: string;
    title?: never;
};
/**
 * Open a GoodTask task by title or identifier.
 *
 * @param payload OpenTask action payload.
 * @returns GoodTask task URL.
 * @example
 * openTask({ title: 'Buy milk' })
 * // => 'goodtask3://task?title=Buy%20milk'
 * @example
 * openTask({ identifier: 'ITEM-IDENTIFIER' })
 * // => 'goodtask3://task?identifier=ITEM-IDENTIFIER'
 * @link https://goodtaskapp.com/url-scheme/
 */
export declare function openTask(payload: OpenTask): string;
export {};