/******************************************************************************
 * Copyright 2021 TypeFox GmbH
 * This program and the accompanying materials are made available under the
 * terms of the MIT License, which is available in the project root.
 ******************************************************************************/
import type { AstNode, LangiumDocument, LangiumCoreServices } from 'langium';
export declare function extractDocument<T extends AstNode>(fileName: string, extensions: readonly string[], services: LangiumCoreServices): Promise<LangiumDocument<T>>;
export declare function extractAstNode<T extends AstNode>(fileName: string, extensions: string[], services: LangiumCoreServices): Promise<T>;
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