如何将列表作为JSON对象返回，其中包含嵌套数组，而不仅仅是数组？

data = {
    "list": [
        {
            "name": "John",
            "age": 30,
            "hobbies": ["reading", "gaming", "traveling"]
        },
        {
            "name": "Jane",
            "age": 25,
            "hobbies": ["painting", "photography", "cooking"]
        }
    ]
}

import json

json_data = json.dumps(data)

from flask import Flask, jsonify

app = Flask(__name__)

@app.route('/data', methods=['GET'])
def get_data():
    return jsonify(data)

if __name__ == '__main__':
    app.run()