[test](./index.md) ## Package <root> **Platform and version requirements:** Kotlin 1.1+ ### Types | [Since1.1](-since1.1/index.md)(Kotlin 1.1) | `class Since1.1`Useful | | [Since1.2](-since1.2/index.md)(Kotlin 1.2) | `class Since1.2`Useful also |