import type { RExpressionList } from '../ast/model/nodes/r-expression-list';
import type { Tree } from 'web-tree-sitter';
/**
 * @param tree - The tree to normalize
 */
export declare function normalizeTreeSitterTreeToAst(tree: Tree): RExpressionList;
export declare function makeTreeSitterLax(): void;
export declare function makeTreeSitterStrict(): void;