v9.1.0
1) feat: support NaN for isNone, add isShallowEqual, add decideby & caseby (tangshuang) (SHA: 71cd6af56ea45ecf51a4a713a1e5b3a23fe25051) 2) update version to 9.1.0 (tangshuang) (SHA: 006871c0c1df60ee9f52a16c31998562af91d173)
1) feat: support NaN for isNone, add isShallowEqual, add decideby & caseby (tangshuang) (SHA: 71cd6af56ea45ecf51a4a713a1e5b3a23fe25051) 2) update version to 9.1.0 (tangshuang) (SHA: 006871c0c1df60ee9f52a16c31998562af91d173)