I 'm using "Snap!" for data science. (BTW: Great feature. Thanks!) I 'm trying to build a "select 'columns' from 'table'" block - just for fun. Obviously, there is the "map" block for the same purpose.
If I ringify the input "columns", it 's working just fine.
If I do the ringifying in the block definition, I 'm getting an error output.
Where 's the difference? Is it a bug or is it a feature? Any help would be welcome. If you need to know more details, feel free to ask. Thank you in advance.