This property defines the Unicodes which belongs to Ethiopic Extended A block
Characters like ꬁ,ꬂ,ꬃ, etc. are listed under Ethiopic Extended A Block.
38 Characters are present in Ethiopic Extended A Block starting with the Unicode point U+AB01 that represents the character ꬁ.
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.