I'm able to get values from a single sheet using code like you see below, but I was wondering if I can somehow get all the values from all the sheets in a Spreadsheet and then manipulate the date regarding on what I get. In other words, can you set the range to include sheets from sheet x to sheet y, or at least get all the data from all the sheets, and after that I'll somehow try to include/ exclude sheets. I'm using the Sheets API, and I can't use the Google App Scripts for this.

```
let { google } = require("googleapis");
let authentication = require("./authentication");

function getData(auth) {
  var sheets = google.sheets('v4');
  sheets.spreadsheets.values.get({
    auth: auth,
    spreadsheetId: '1XOqjUJ1eAMhl2g4KLIS4qPUzdwebSVeoE8OGJtPYyPw',
    range: 'Test!A2:C', **//I would love to get all sheets. This is only one of them. Possible?**
  }, (err, res) => {
    if (err) {
      console.log('The API returned an error: ' + err);
      return res;
    } 
    var rows = res.values;
    if (rows.length === 0) {
      console.log('No data found.');
    } else {
        for (var i = 0; i<= rows.length; i++) {
            var row = rows[i];
            console.log(row);
          }
        }
      });
    }

authentication.authenticate()
    .then((auth) => {
        getData(auth)
        .catch((err) => {
            console.log(err)
        });
});

```