如何在云函数中实现批量插入数据?

db.collection('test')   .add({     data: [       {         _id: 'apple-1',         name: 'apple',         category: 'fruit',         price: 10,       },       {         _id: 'orange-1',         name: 'orange',         category: 'fruit',         price: 15,       },       {         _id: 'watermelon-1',         name: 'watermelon',         category: 'fruit',         price: 20,       },       {         _id: 'yaourt-1',         name: 'yaourt',         category: 'dairy',         price: 8,       },       {         _id: 'milk-1',         name: 'milk',         category: 'dairy',         price: 12,       },       {         _id: 'chocolate-1',         name: 'Lindt chocolate',         category: 'chocolate',         price: 16,       },     ]   })

我在云开发后台操作这段批量插入的代码是可以正常执行的,

但写在云函数里面却报了以下错误

 parameter.data should be object instead of array

请问云函数里面可以做批量插入吗,要怎么写才对呢?