public String getFaceModelVersion() {
        return this.faceModelVersion;
    }
<p>
Version number of the face detection model associated with the input collection (<code>CollectionId</code>).
</p>

@return Version number of the face detection model associated with the input collection (
        <code>CollectionId</code>).
aws-java-sdk-rekognition/src/main/java/com/amazonaws/services/rekognition/model/ListFacesResult.java