Several of our custom facts return arrays. The inability to see if a specific value is present within the array is difficult. Additionally, some times I wish to perform a sort of logical OR. If A is either B or C do X. Duplicating X for each matcher allows items to get out of sync.

Example:
myfact = ['a', 'b', 'c', 'd']

I'd like to trigger some behavior if myfact contains 'd'.

Can an 'IN' operator (similar to SQL) be added to the specific matchers provided?