code: public void setFaceModelVersions(java.util.Collection<String> faceModelVersions) {
          if (faceModelVersions == null) {
              this.faceModelVersions = null;
              return;
          }
  
          this.faceModelVersions = new java.util.ArrayList<String>(faceModelVersions);
      }
docs: <p>
  Version numbers of the face detection models associated with the collections in the array
  <code>CollectionIds</code>. For example, the value of <code>FaceModelVersions[2]</code> is the version number for
  the face detection model used by the collection in <code>CollectionId[2]</code>.
  </p>
  
  @param faceModelVersions
  Version numbers of the face detection models associated with the collections in the array
  <code>CollectionIds</code>. For example, the value of <code>FaceModelVersions[2]</code> is the version
  number for the face detection model used by the collection in <code>CollectionId[2]</code>.