public SSMLMessageType withLanguageCode(String languageCode) {
        setLanguageCode(languageCode);
        return this;
    }
The language to use when delivering the message. For a complete list of supported languages, see the Amazon Polly
Developer Guide.

@param languageCode
       The language to use when delivering the message. For a complete list of supported languages, see the
       Amazon Polly Developer Guide.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-pinpointsmsvoice/src/main/java/com/amazonaws/services/pinpointsmsvoice/model/SSMLMessageType.java