Ability to name struct fields as, e.g. uint16

[gobwas]

Hello!
Thank you for such super fast library 🚀

Lets say we have a struct:

type Pokemon struct {
    Name string
}

Generated code for which becomes:

// somewhere in (*Pokemon) {Unmarshal,Decode}Msg
switch msgp.UnsafeString(field) {
        case "Name":
                // ...

Could it become somehow to something like this?

type Pokemon struct {
    Name string `msg:"(uint)0x01"`
}
//...
// somewhere in (*Pokemon) {Unmarshal,Decode}Msg
switch binary.Uint16(field) {
        case 0x01:
                // ...