g.Lazy.Char8.unpack' (or 'Data.ByteString.Lazy.Char8.pack') a list of characters into a 'ByteString'
--
-- When writing back to the 'ByteString' it is assumed that every 'Char'
-- lies between @'\x00'@ and @'\xff'@.
--
-- @
-- 'unpackedChars' ≡ 'from' 'packedChars'
-- 'Data.ByteString.Char8.unpack' x ≡ x '^.' 'unpackedChars'
-- 'Data.ByteString.Char8.pack' x ≡ x '^.' 'from' 'unpackedChars'
-- @
--
-- >>> [104,101,108,108,111]^.packedBytes.unpackedChars
-- "hello"
unpackedChars :: Iso' ByteString String
unpackedChars = from packedChars
{-# INLINE unpackedChars 
unpackedChars :: Iso' ByteString String
unpackedChars = from packedChars
unpackedChars = from packedChars