/**
 * 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 CodeNode } from '@lexical/code-core';
import { type LexicalEditor, type LexicalNode, type NodeKey } from 'lexical';
export declare function isCodeLanguageLoaded(language: string): boolean;
/**
 * Loads a syntax highlighting grammar for the given language via Shiki.
 * If the language is already loaded or is not supported, the call is a no-op.
 *
 * When both `editor` and `codeNodeKey` are passed, the corresponding
 * {@link CodeNode} is updated to enable syntax highlighting once the
 * language becomes available
 * @param language language identifier (e.g. `"typescript"`, `"diff-js"`)
 * @param editor - Lexical editor instance to update after the language loads.
 * @param codeNodeKey - Key of the {@link CodeNode} to mark as syntax-highlight-supported.
 * @returns A Promise that resolves when the language is ready,
 * or `undefined` if the `language` was already loaded or is not supported.
 */
export declare function loadCodeLanguage(language: string, editor?: LexicalEditor, codeNodeKey?: NodeKey): Promise<void> | undefined;
export declare function isCodeThemeLoaded(theme: string): boolean;
export declare function loadCodeTheme(theme: string, editor?: LexicalEditor, codeNodeKey?: NodeKey): Promise<void> | undefined;
export declare function getCodeLanguageOptions(): [string, string][];
export declare function getCodeThemeOptions(): [string, string][];
export declare function normalizeCodeLanguage(language: string): string;
export declare function $getHighlightNodes(codeNode: CodeNode, language: string): LexicalNode[];