SmartReply.swift

naturalLanguage.smartReply().suggestReplies(for: conversation) { result, error in
            guard error == nil, let result = result else {
                return
            }
            if (result.status == .notSupportedLanguage) {
                // The conversation's language isn't supported, so the
                // the result doesn't contain any suggestions.
            } else if (result.status == .success) {
                // Successfully suggested smart replies.
                // ...
                let _ = result.suggestions.map { print($0.text) }
            }
        }