我正在嘗試創(chuàng)建一個(gè)接口，該接口具有將任何結(jié)構(gòu)作為輸入的方法。嘗試使用*interface但不工作。代碼：package mainimport (    "fmt")type Marshallable interface {    marshal() (*interface{}, error)}func Marshal(marshallable Marshallable) (error) {    fmt.Println(marshallable.marshal())    return nil}type Message1 struct {   message string}func (m *Message1) marshal() (m2 *Message2, err error) {    return nil, nil}type Message2 struct {   message string}func main(){   var m1 = Message1 {message: "Hello1"}   Marshal(m1)}它給出了編譯器錯(cuò)誤：./prog.go:31:11: cannot use m1 (type Message1) as type Marshallable in argument to Marshal:    Message1 does not implement Marshallable (wrong type for marshal method)        have marshal() (*Message2, error)        want marshal() (*interface {}, error)有什么辦法可以讓它工作嗎？