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class HListBench {
class A[H, T]
type B[H, T] = A[H, T]
// was okay
type T1 = A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, A[Int, Nothing]]]]]]]]]]]]]]]]]]]]]]]]]]]]
// Took over a minute to validate variance in 2.10.3!
type T2 = B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, B[Int, Nothing]]]]]]]]]]]]]]]]]]]]]]]]]]]]
}
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