-- | RFC 3339 date-time when this blog was last updated.
bUpdated :: Lens' Blog (Maybe UTCTime)
bUpdated
  = lens _bUpdated (\ s a -> s{_bUpdated = a}) .
      mapping _DateTime
bUpdated :: Lens' Blog (Maybe UTCTime)
bUpdated
  = lens _bUpdated (\ s a -> s{_bUpdated = a}) .
      mapping _DateTime
bUpdated
  = lens _bUpdated (\ s a -> s{_bUpdated = a}) .
      mapping _DateTime