Go- Copy all common fields between structs

Couldn't struct embedding be useful here?

package main

import (
    "fmt"
)

type DB struct {
    User
    Secret bool `json:"secret_key"`
}

type User struct {
    NumBits int `json:"num_bits"`
}

func main() {
    db := DB{User{10}, true}
    fmt.Printf("Hello, DB: %+v\n", db)
    fmt.Printf("Hello, DB.NumBits: %+v\n", db.NumBits)
    fmt.Printf("Hello, User: %+v\n", db.User)
}

http://play.golang.org/p/9s4bii3tQ2

buf := bytes.Buffer{}
err := gob.NewEncoder(&buf).Encode(&DbVar)
if err != nil {
    return err
}
u := User{}
err = gob.NewDecoder(&buf).Decode(&u)
if err != nil {
    return err
}