This property defines the Unicodes which belongs to Lisu block
Characters like ꓐ,ꓑ,ꓒ, etc. are listed under Lisu Block.
48 Characters are present in Lisu Block starting with the Unicode point U+A4D0 that represents the character ꓐ.
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.