Specify YouTube Channel Id to Upload Video

I am using this Apps Script code to upload videos from Google Drive to my YouTube channel, which works fine.

I have created another channel under my Google account and want to upload videos to this second channel. How do I specify the ID of the second channel in the code?

Because when using the code and specifying the second channel with:

id=CHANNEL_ID

The code still uploads the video to the first channel (which is created by default with a Google account).

I also note that an authorization window appears the first time the code is executed. But it allows authorization only through a Google account. If you try to choose authorization through the second YouTube channel - it will give an error:

function uploadToYoutube(){   const sourceFile = DriveApp.getFileById(" ").getBlob();  const videoResource = {     snippet: {      title: 'Summer vacation in California',       description: 'Had a great time surfing in Santa Cruz',       tags: [ 'surfing', 'Santa Cruz', ],       categoryId: '22',     },     status: {privacyStatus: 'private'} // Added;   };  const newVideo = YouTube.Videos.insert( videoResource, "snippet,status", sourceFile); // Modified   console.log(newVideo)   }