bridge

type CatSender struct{}

type CommonMailman struct {
	// contains filtered or unexported fields
}

type DogSender struct{}

type Mail struct {
	// contains filtered or unexported fields
}

type Mailman interface {
	SendMail(mail Mail) string
}

type Sender interface {
	Send(str string) string
}

type SpecialMailman struct {
	// contains filtered or unexported fields
}