This property defines the Unicodes which belongs to Lao block
Characters like ກ,ຂ,ຄ, etc. are listed under Lao Block.
95 Characters are present in Lao Block starting with the Unicode point U+0E81 that represents the character ກ.
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.