Usage of expect/actual keyword in KMM

OSInformation.kt

:shared:commonMain:OSInformation.kt
expect fun getOSInformation(): String

:shared:androidMain:OSInformation.kt
actual fun getOSInformation(): String {
    print(Build.VERSION_CODES::class.java.fields)
    return "${Build.VERSION_CODES::class.java.fields[Build.VERSION.SDK_INT].name} ${Build.VERSION.SDK_INT}"
}

:shared:iOSMain:OSInformation.kt
actual fun getOSInformation(): String {
    return "${platform.UIKit.UIDevice.currentDevice.systemName()} ${platform.UIKit.UIDevice.currentDevice.systemVersion}"
}