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-//// A module containing some unusual functions and types.
-
-/// A type where the value can never be constructed.
-/// Can you work out why?
-pub type Never {
-  Never(Never)
-}
-
-/// Call a function twice with an initial value.
-///
-pub fn twice(argument: value, function: fn(value) -> value) -> value {
-  function(function(argument))
-}
-
-/// Call a function three times with an initial value.
-///
-pub fn thrice(argument: value, function: fn(value) -> value) -> value {
-  function(function(function(argument)))
-}