使用Nodejs的Mongodb出现错误"'cursor‘选项是必需的，除了带有explain参数的聚合“

const MongoClient = require('mongodb').MongoClient;

async function runAggregation() {
  const uri = 'mongodb://localhost:27017';
  const client = new MongoClient(uri);

  try {
    await client.connect();

    const database = client.db('mydb');
    const collection = database.collection('mycollection');

    const pipeline = [
      // 聚合操作的各个阶段
      // ...
    ];

    const options = {
      cursor: { batchSize: 100 } // 设置批量游标
    };

    const cursor = collection.aggregate(pipeline, options);

    // 处理聚合结果
    await cursor.forEach(doc => {
      console.log(doc);
    });
  } finally {
    await client.close();
  }
}

runAggregation().catch(console.error);