import type { IEditor } from 'roosterjs-content-model-types';
/**
 * Set text direction of selected paragraphs (Left to right or Right to left)
 * @param editor The editor to set alignment
 * @param direction Direction value: ltr (Left to right) or rtl (Right to left), or 'auto' (Based on the first characters of the document, set the direction automatically)
 */
export declare function setDirection(editor: IEditor, direction: 'ltr' | 'rtl' | 'auto'): void;