public ValidationData withAssets(java.util.Collection<Asset> assets) {
        setAssets(assets);
        return this;
    }
<p>
The assets that comprise the validation data.
</p>

@param assets
       The assets that comprise the validation data.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-rekognition/src/main/java/com/amazonaws/services/rekognition/model/ValidationData.java