Dataset only accept string data in script

In perspective i have following script:

you see the data as a string will be succesfull parsed to a dataset.

But with a long/integer it wouldnt do that :frowning:

It gives a java.lang.ClassCastException

it works if script the integer like this: [3] instead of only the 3.
strange but im helped…

The data parameter is supposed to be a list of rows (list of lists), which is why it works when you append [3] and not 3.