title: How interface can enforce "static" methods in sub-classes in Kotlin
body: <p>I'm implementing a customized Parcelable interface using Kotlin (Original Android's API: <a href="https://developer.android.com/reference/kotlin/android/os/Parcelable" rel="nofollow noreferrer">https://developer.android.com/reference/kotlin/android/os/Parcelable</a>). How can I enforce a static field (i.e. companion object) similar to how the CREATOR field is enforced?</p>