Retrieve EssentialProperty from a DashManifest image Representation #9579

I have the following AdaptionSet from a DASH manifest file

<AdaptationSet id="3" mimeType="image/jpeg" contentType="image">
      <SegmentTemplate media="template_goes_here">
        <SegmentTimeline>
          <S d="40000" r="126"/>
          <S d="24000"/>
        </SegmentTimeline>
      </SegmentTemplate>
      <Representation id="10" bandwidth="36864" width="1280" height="720" frameRate="0">
        <EssentialProperty schemeIdUri="http://dashif.org/guidelines/thumbnail_tile" value="5x5"/>
      </Representation>
</AdaptationSet>

As you can see, it defines the template for images of sizes 1280x720 and in the Representation we have an EssentialProperty of value 5x5 which describes the fact that the image is basically an image atlas of 25 images each of 256x144 each.

Is there a way to retrieve that EssentialProperty so that I can display the correct tile from that image?

I have checked the property essentialProperties from the AdaptionSet class however it is an empty list and the Representation.MultiSegmentRepresentation does not seem to have an essentialProperties of it's own, just the inbandEventStreams property.

As a side note I have found this related issue, however the fix for it seems to just set the image width and height from the representation in the format structure.

Thanks in advance!