func New(id int, fname string, lname string) *User {
	return &User{
		ID:        id,
		FirstName: fname,
		LastName:  lname,
	}
}
New returns a reference to a new user instance
package users
type User struct {
	ID            int    `json:"id"`
	FirstName     string `json:"first_name"`
	LastName      string `json:"last_name"`
	FavoriteColor string `json:"fav_color,omitempty"`
}