This property defines the Unicodes which belongs to Duployan block
Characters like 𛰀,𛰁,𛰂, etc. are listed under Duployan Block.
147 Characters are present in Duployan Block starting with the Unicode point U+1BC00 that represents the character 𛰀.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.