MediaPackage and MediaConvert does not generate Role tag in the DASH Manifest ?

Mediapackage & Mediaconvert MPEG - DASH Output does not has Role tag in the manifest ? Why is that so ?

This is an very important tag that must be present in the manifest,MediaPackage does not put this tag in the manifest for Multi-audio/multi-lingual asset.

Missing tag in the Manifest - <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"></Role>