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)