ween strict 'Text' and 'Builder' .
--
-- @
-- 'fromText' x ≡ x '^.' 'builder'
-- 'toStrict' ('toLazyText' x) ≡ x '^.' 'from' 'builder'
-- @
builder :: Iso' Text Builder
builder = iso fromText (toStrict . toLazyText)
{-# INLINE builder 
builder :: Iso' Text Builder
builder = iso fromText (toStrict . toLazyText)
builder = iso fromText (toStrict . toLazyText)