public StartEntitiesDetectionJobRequest withLanguageCode(String languageCode) {
        setLanguageCode(languageCode);
        return this;
    }
<p>
The language of the input documents. All documents must be in the same language. You can specify any of the
languages supported by Amazon Comprehend. If custom entities recognition is used, this parameter is ignored and
the language used for training the model is used instead.
</p>

@param languageCode
       The language of the input documents. All documents must be in the same language. You can specify any of
       the languages supported by Amazon Comprehend. If custom entities recognition is used, this parameter is
       ignored and the language used for training the model is used instead.
@return Returns a reference to this object so that method calls can be chained together.
@see LanguageCode
aws-java-sdk-comprehend/src/main/java/com/amazonaws/services/comprehend/model/StartEntitiesDetectionJobRequest.java