public ImageInserter withInsertableImages(InsertableImage... insertableImages) {
        if (this.insertableImages == null) {
            setInsertableImages(new java.util.ArrayList<InsertableImage>(insertableImages.length));
        }
        for (InsertableImage ele : insertableImages) {
            this.insertableImages.add(ele);
        }
        return this;
    }
Specify the images that you want to overlay on your video. The images must be PNG or TGA files.
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setInsertableImages(java.util.Collection)} or {@link #withInsertableImages(java.util.Collection)} if you
want to override the existing values.
</p>

@param insertableImages
       Specify the images that you want to overlay on your video. The images must be PNG or TGA files.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/ImageInserter.java