how can I declare an extension parameter `MAX` on ...

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how can I declare an extension parameter MAX on a generic enum to represent the size?
this: val <E> Enum<E>.Companion.MAX get() = enumValues().size, complains:

Type arguments for outer class are redundant when nested class is referenced

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solved, inline val <reified T : Enum<T>> T.MAX get() = enumValues<T>().size