changed types of encodeCSV and encodeRawCSV

...to be more generic, the type now allows the to take any kind of input

src/Data/CSV/Sip.hs

@@ -153,7 +153,7 @@ encodeCSV
   :: Monad m
   => [[T.Text]]
   -- ^ the data being encoded, organized into rows and fields
-  -> ConduitT () BS.ByteString m ()
+  -> ConduitT o BS.ByteString m ()
 encodeCSV csv = sourceList csv .| encodeRows
 
 -- | encode an entire CSV file
@@ -161,7 +161,7 @@ encodeRawCSV
   :: Monad m
   => [[BS.ByteString]]
   -- ^ the data being encoded, organized into rows and fields
-  -> ConduitT () BS.ByteString m ()
+  -> ConduitT o BS.ByteString m ()
 encodeRawCSV csv = sourceList csv .| encodeRawRows
 
 -- | Writes a stream of Text-based rows to a CSV file
@@ -217,7 +217,7 @@ decodeUTF8 bs = case decodeUtf8' bs of
   Left _    -> Nothing
   Right txt -> Just txt
 
--- | convert a stream to ByteStrings to a string of bytes
+-- | convert a stream to ByteStrings to a stream of bytes
 toBytes :: Monad m => ConduitT BS.ByteString Word8 m ()
 toBytes = await >>= \case
   Just bs -> do