Like override

like-override.go

package main

import (
	"fmt"
)

type User struct {
	id   int
	name string
}

type Manager struct {
	User
	title string
}

func (self *User) ToString() string {
	return fmt.Sprintf("User: %p, %v", self, self)
}

func (self *Manager) ToString() string {
	return fmt.Sprintf("Manager: %p, %v", self, self)
}

func main() {
	m := Manager{User{1, "Tom"}, "Administrator"}

	fmt.Println(m.ToString())
	fmt.Println(m.User.ToString())
}

Manager: 0xc080043de0, &{{1 Tom} Administrator}
User: 0xc080043de0, &{1 Tom}