This property defines the Unicodes which belongs to Rumi block
Characters like 𐹠,𐹡,𐹢, etc. are listed under Rumi Block.
32 Characters are present in Rumi Block starting with the Unicode point U+10E60 that represents the character 𐹠.
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.