我可以使用NodeJS API读取给定Google工作表的范围，但所有值（甚至是数字单元格）都显示为字符串。

const { google } = require('googleapis');

exports.readGoogleSheet = async (req, res) => {

  try {
    const auth = new google.auth.GoogleAuth({
      keyFile: '...',
      scopes: 'https://www.googleapis.com/auth/spreadsheets.readonly'
    });

    const client = await auth.getClient()

    const sheets = google.sheets({
      version: 'v4',
      auth: client
    });

    // read body params
    const docId = req.body.docId; //1uq .....
    const sheetId = req.body.sheetId; //Sheet1
    const range = req.body.range; //A1:C2

    // check if blank
    if (!docId || !sheetId || !range) res.status(400).send('Invalid Parameters')

    const options = {
      spreadsheetId: docId,
      range: `${sheetId}!${_range}`
    };
    
   const {data} = await sheets.spreadsheets.values.get(options);
   
   console.log(data.values); 
   // this shows something like
   //[ [ 'name', 'value', 'units' ], [ 'Sales', '350000', '$' ] ]
   // notice how the 350000 appears as a string
   // even when it is a plain unformatted number in the google sheet

    res.status(200).send(values);
  }
  catch (err) {
    res.status(400).send(err.message);
  }
};

谁能指出我哪里做错了吗？谢谢