This property defines the Unicodes which belongs to Myanmar Extended A block
Characters like ꩠ,ꩡ,ꩢ, etc. are listed under Myanmar Extended A Block.
32 Characters are present in Myanmar Extended A Block starting with the Unicode point U+AA60 that represents the character ꩠ.
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.