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diff --git a/lib/MandelHSlib.hs b/lib/MandelHSlib.hs
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+++ b/lib/MandelHSlib.hs
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+module MandelHSlib where
+
+import qualified Data.Serialize as Ser
+import qualified Data.Vector.Storable as VS
+
+
+data Fractal a = Fractal (Int, Int) Int (VS.Vector a)
+
+instance (VS.Storable a, Ser.Serialize a) => Ser.Serialize (Fractal a) where
+  put (Fractal size maxiter v) = do
+    Ser.put size
+    Ser.put maxiter
+    Ser.putWord64be (fromIntegral (VS.length v))
+    VS.mapM_ Ser.put v
+  get = do
+    size <- Ser.get
+    maxiter <- Ser.get
+    len <- fromIntegral <$> Ser.getWord64be
+    v <- VS.replicateM len Ser.get
+    return (Fractal size maxiter v)