This property defines the Unicodes which have Lanna script
Characters like ᨠ,ᨡ,ᨢ, etc. are listed under Lanna Script.
127 Characters are present in Lanna Script starting with the Unicode point U+1A20 that represents the character ᨠ.
Currently, as per latest version 15.0.0, Unicode supports 164 number of Script. Here are a few examples - Adlam,Ahom,Anatolian Hieroglyphs, etc.