This property defines the Unicodes which have Siddham script
Characters like 𑖀,𑖁,𑖂, etc. are listed under Siddham Script.
92 Characters are present in Siddham Script starting with the Unicode point U+11580 that represents the character 𑖀.
Currently, as per latest version 15.0.0, Unicode supports 164 number of Script. Here are a few examples - Adlam,Ahom,Anatolian Hieroglyphs, etc.