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Lib.hs

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Jan 15th, 2017
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  1. module Lib
  2.     ( makeGreeting, getUserName
  3.     , getUserAge, Environment) where
  4.  
  5. class Environment a where
  6.     getUserName :: a -> String
  7.     getUserAge :: a -> Int
  8.  
  9. makeGreeting env = "Hello, " ++ getUserName env ++ " (age = " ++ show(getUserAge env) ++ ")"
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