public Integer getThumbnailHeight() {
        return this.thumbnailHeight;
    }
Height of each thumbnail within each tile image, in pixels. Leave blank to maintain aspect ratio with thumbnail
width. If following the aspect ratio would lead to a total tile height greater than 4096, then the job will be
rejected. Must be divisible by 2.

@return Height of each thumbnail within each tile image, in pixels. Leave blank to maintain aspect ratio with
        thumbnail width. If following the aspect ratio would lead to a total tile height greater than 4096, then
        the job will be rejected. Must be divisible by 2.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/DashIsoImageBasedTrickPlaySettings.java