如何使用typescript中的node-tree-sitter模块？

npm install node-tree-sitter

import * as Parser from 'tree-sitter';
import * as TypeScript from 'tree-sitter-typescript';

const parser = new Parser();
parser.setLanguage(TypeScript);

const sourceCode = `
function greet(name: string): void {
  console.log('Hello, ' + name + '!');
}
`;

const tree = parser.parse(sourceCode);

function walk(node: Parser.SyntaxNode) {
  for (let i = 0, n = node.childCount; i < n; ++i) {
    const child = node.child(i);
    console.log('Node type:', child.type);
    console.log('Node text:', child.text);
    walk(child);
  }
}

// 遍历解析树
walk(tree.rootNode);