如何在Gmail中的“类别”标签中提取邮件？

I am trying to extract mails from gmail using python. I noticed that I can get mails from "[Gmail]/All Mail", "[Gmail]/Drafts","[Gmail]/Spam" and so on. However, is there any method to retrieve mails that are labeled with "Primary", "Social", "Promotions" etc.? These tags are under the "categories" label, and I don't know how to access it.I am trying to extract mails from gmail using p