-- | Indicates whether this is the main route table.
rtaMain :: Lens' RouteTableAssociation (Maybe Bool)
rtaMain = lens _rtaMain (\s a -> s { _rtaMain = a })
rtaMain :: Lens' RouteTableAssociation (Maybe Bool)
rtaMain = lens _rtaMain (\s a -> s { _rtaMain = a })
rtaMain = lens _rtaMain (\s a -> s { _rtaMain = a })