This property defines the Unicodes which belongs to Osmanya block
Characters like 𐒀,𐒁,𐒂, etc. are listed under Osmanya Block.
42 Characters are present in Osmanya Block starting with the Unicode point U+10480 that represents the character 𐒀.
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.