import Parser from 'web-tree-sitter';
import type { RParseRequest } from '../../retriever';
import type { SyncParser } from '../../parser';
export declare const DEFAULT_TREE_SITTER_R_WASM_PATH: string;
export declare const DEFAULT_TREE_SITTER_WASM_PATH: string;
/**
 * Synchronous and (way) faster alternative to the {@link RShell} using tree-sitter.
 */
export declare class TreeSitterExecutor implements SyncParser<Parser.Tree> {
    readonly name = "tree-sitter";
    readonly parser: Parser;
    private static language;
    static initTreeSitter(): Promise<void>;
    constructor();
    rVersion(): Promise<string | 'unknown' | 'none'>;
    parse(request: RParseRequest): Parser.Tree;
    close(): void;
}