msg := golark.NewMsgBuffer(golark.MsgInteractive) om := msg.BindEmail(testUserEmail).Card(card.String()).Build() crossMsg, err := BuildMessage(golark.UIDEmail, om) if err != nil { // error handling ... } cli := clark.New(clark.WithAppCredential(testAppID, testAppSecret)) resp, _, err := cli.Message.SendRawMessage(t.Context(), crossMsg)