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<interactive>:1:8: error:
• Couldn't match type ‘a0 -> a0’ with ‘[Char]’
Expected type: IO Prelude.String
Actual type: IO (a0 -> a0)
• In the expression: return id
In the second argument of ‘(.)’, namely ‘(\ _ -> return id)’
In the expression:
(.)
(GHC.GHCi.ghciStepIO :: IO Prelude.String -> IO Prelude.String)
(\ _ -> return id) ::
Prelude.String -> IO Prelude.String
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