Given this Flask route and service layer code, what will be the output when accessing /user/2 if user with ID 2 exists?

Given this Flask route and service layer code, what will be the output when accessing /user/2 if user with ID 2 exists?

from flask import Flask, jsonify
app = Flask(__name__)

class UserService:
    def get_user_by_id(self, user_id):
        users = {1: 'Alice', 2: 'Bob'}
        return users.get(user_id, None)

service = UserService()

@app.route('/user/<int:user_id>')
def user(user_id):
    user_name = service.get_user_by_id(user_id)
    if user_name:
        return jsonify({'user': user_name})
    else:
        return jsonify({'error': 'User not found'}), 404