<Kotlin - ArrowCore ensureNotNull in either.eager?...

# stackoverflow

[user]

Kotlin - ArrowCore ensureNotNull in either.eager?
I can utilize ensure, but not ensureNotNull in this MRE validation function. I cannot create a suspend fun, so I need to be able to use either.eager. The ability to utilize this would drastically increase the readability for my code.
fun isValid(integer: Int?): Either = either.eager {
ensure(true) {
Exception()
}

ensureNotNull(integer) { // Restricted suspending functions can only invoke member or extension suspending functions on their restricted coroutine scope....