And so the advantage of, of doing or using this type of mechanism to store data or to read or to read data is that you don't have, it's still a textual format which can be useful but it also contains metadata so that you don't have to specify it every single time you read it in because that, if you don't, if the metadata do not get carried with the data set itself then they, they can get lost, if they, if they get transferred somewhere else. 