/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */
import { type ElementNode } from 'lexical';
import { type TextFormatTransformer, type Transformer } from './MarkdownTransformers.js';
export type TextFormatTransformersIndex = Readonly<{
    fullMatchRegExpByTag: Readonly<Record<string, RegExp>>;
    openTagsRegExp: RegExp;
    transformersByTag: Readonly<Record<string, TextFormatTransformer>>;
}>;
/**
 * Parses a markdown string and appends the resulting nodes to `container`.
 * Does not clear the container or touch the selection — callers handle that.
 */
export declare function $importMarkdownNodes(markdownString: string, container: ElementNode, transformers: Transformer[], shouldPreserveNewLines?: boolean): void;