import Effects import Effect.Logging.Category func : Nat -> Eff () [LOG String] func x = do warn Nil $ unwords ["I do nothing with", show x] pure () doubleFunc : Nat -> Eff Nat [LOG String] doubleFunc x = do logN 40 ["NumOPS"] $ unwords ["Doing the double with", show x ] func x pure (x+x) eMain : Eff Nat [LOG String] eMain = do initLogger ALL ["NumOPS"] doubleFunc 3 main : IO () main = do x <- run eMain printLn x