Steps to reproduce

Tell us about your environment:

• Puppeteer version: 7.0.4
• Platform / OS version: Mac
• URLs (if applicable): n/a
• Node.js version: v10

I want to ask about difference while migrating from @types/puppeteer to the included definitions (thank you btw!)

In the past (with DefinitelyTyped), request resource types were defined ("document", "xhr", etc.):

page.on("request", request => {
   const resourceType = request.resourceType(); // puppeteer.ResourceType
});

Now, it returns string. I see there is a puppeteer.Protocol.Network.ResourceType (although those are not lowercased).

Is there a type we can use for this instead of string? Same for request.method() which also now returns string instead of the old DefinitelyTyped puppeteer.HttpMethod.

Thank you!