如何通过代码设置带有动态值的dialogflow webhook头部？

import json
from flask import Flask, request

app = Flask(__name__)

@app.route('/webhook', methods=['POST'])
def webhook():
    # 获取请求中的参数
    request_data = request.get_json()
    
    # 获取动态值
    dynamic_value = request_data['queryResult']['parameters']['dynamic_value']
    
    # 设置Webhook头部
    headers = {
        'Content-Type': 'application/json',
        'Dynamic-Value': dynamic_value
    }
    
    # 构建响应
    response = {
        'fulfillmentText': 'Response from webhook',
        'payload': {
            'headers': headers
        }
    }
    
    return json.dumps(response)

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