Regarding file uploads

[idc77]

At https://gqlgen.com/reference/file-upload/ the file type has an int ID.
I wonder why it's necessary that the input UploadFile has an id: Int!

Couldn't it just be

input UploadFile {
    file: Upload!
}

Likewise, why does the File type have a content: String! field?
Are those the base64 encoded file contents?

I'm trying to make sense of how I'm going to adapt all that with entgo.io

[idc77]

Never mind, it's pretty much explained in the example
https://github.com/99designs/gqlgen/blob/master/_examples/fileupload/server/server.go