/**
 * Append payload definition.
 */
type Append = {
    /**
     * Storage location.
     *
     * @default 'local'
     */
    location?: 'iCloud' | 'local' | 'external';
    /**
     * Directory path.
     *
     * @default root folder
     */
    path?: string;
    /**
     * File name to open. If the file doesn't exist, it will be created.
     */
    name: string;
    /**
     * External folder identifier. Required when location is 'external'.
     *
     * @example '62E8D362-7DFA-413C-874E-20C1D98B17C0'
     */
    externalUUID?: string;
    /**
     * Text to append to the file.
     */
    text?: string;
    /**
     * Snippet to append. If both snippet and text are present, only snippet will be used.
     *
     * @link http://manual.macromates.com/en/snippets
     */
    snippet?: string;
};
/**
 * Open an existing file or create a new file and append text.
 *
 * @param payload Append payload.
 * @returns Textastic append URL.
 * @example
 * append({
 *   location: 'iCloud',
 *   name: 'clipboard.txt',
 * })
 * // => 'textastic://x-callback-url/append?location=iCloud&name=clipboard.txt'
 * @example
 * append({
 *   name: 'log.txt',
 *   text: 'new line',
 * })
 * // => 'textastic://x-callback-url/append?name=log.txt&text=new%20line'
 * @link https://www.textasticapp.com/v10/manual/integration_other_apps/x-callback-url.html#append
 */
export declare function append(payload: Append): string;
export {};