Hi!
I have a syntax question.
When putting variable in module’s parameter, you can omit it if it is undefined, like so:
`
parameter: {{ variable | default(omit) }}
`
But how to do the same thing with list filters where either var can be undefined?
`
parameter: {{ list1 | difference(list2) }}
`
How to make module work regardless of whether list1 or list2 defined or not?