Idea Symbolic Names for HTTP Status codes

I had a thought, currently to express a http status code you have to remember the number, would it be possible to have a named type for them. So instead of having the number 304 in my code I could ahve the value 'NotModified' which esp for some of the more unusual status codes would be very helpful in making code more readable.

For example if I see that something should return 415 I probably will have to look up what that means but if I see `UnsupportedMediaType` it is self documenting.