use icu::properties::CodePointSetData;
use icu::properties::props::SoftDotted;
let soft_dotted = CodePointSetData::new::<SoftDotted>();
assert!(soft_dotted.contains('і')); //U+0456 CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I
assert!(!soft_dotted.contains('ı')); // U+0131 LATIN SMALL LETTER DOTLESS I