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Tutorial example doesn't type check #22

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kfiz opened this issue Dec 8, 2017 · 0 comments

kfiz commented Dec 8, 2017

Hi,
The following snippet from the tutorial doesn't type check:
over Text.unlines (takes' n)
since

λ> :t over Pipes.Text.unlines
over Pipes.Text.unlines
    :: Monad m =>
       (Pipes.Core.Producer Text m r -> Pipes.Core.Producer Text m r)
       -> FreeT (Pipes.Core.Producer Text m) m r
       -> FreeT (Pipes.Core.Producer Text m) m r

and

λ> :t takes'
takes'
  :: Monad m =>
     Int -> FreeT (Producer a m) m x -> FreeT (Producer a m) m x

or am I missing something?

Best

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