在Mongoose中，我有具有一对多关系的用户和角色模式。如何查询特定用户是否具有'admin‘角色？

const User = require('./models/User');
const Role = require('./models/Role');

const user = await User.findById(userId);

const roles = await Role.find({ _id: { $in: user.roles } }).populate('user');

const isAdmin = roles.some(role => role.name === 'admin');

const User = require('./models/User');
const Role = require('./models/Role');

const checkUserRole = async (userId) => {
  try {
    const user = await User.findById(userId);
    const roles = await Role.find({ _id: { $in: user.roles } }).populate('user');
    const isAdmin = roles.some(role => role.name === 'admin');

    if (isAdmin) {
      console.log('该用户具有admin角色');
    } else {
      console.log('该用户不具有admin角色');
    }
  } catch (error) {
    console.error(error);
  }
};

// 使用示例
const userId = '1234567890';
checkUserRole(userId);