Pure grouping helpers used by the batch driver to detect
(date, articleType) collisions. Two runs that share both keys would
otherwise produce overlapping article filenames; the batch driver
disambiguates by appending the sanitised runId as a slug suffix.
Description
Pure grouping helpers used by the batch driver to detect
(date, articleType)collisions. Two runs that share both keys would otherwise produce overlapping article filenames; the batch driver disambiguates by appending the sanitisedrunIdas a slug suffix.