public JobAlbumArt withArtwork(Artwork... artwork) {
        if (this.artwork == null) {
            setArtwork(new com.amazonaws.internal.SdkInternalList<Artwork>(artwork.length));
        }
        for (Artwork ele : artwork) {
            this.artwork.add(ele);
        }
        return this;
    }
<p>
The file to be used as album art. There can be multiple artworks associated with an audio file, to a maximum of
20. Valid formats are <code>.jpg</code> and <code>.png</code>
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setArtwork(java.util.Collection)} or {@link #withArtwork(java.util.Collection)} if you want to override
the existing values.
</p>

@param artwork
       The file to be used as album art. There can be multiple artworks associated with an audio file, to a
       maximum of 20. Valid formats are <code>.jpg</code> and <code>.png</code>
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-elastictranscoder/src/main/java/com/amazonaws/services/elastictranscoder/model/JobAlbumArt.java