medium10 pts · first answer countsairflowairflow-dynamic-task-mapping

Mapping over matched pairs

You have three (source, target) pairs and want exactly three mapped copies, not nine. Which call does that?

A.copy.expand(source=sources, target=targets)B.copy.partial(source=sources).expand(target=targets)C.copy.expand_kwargs([{"source": s, "target": t} for s, t in pairs])D.copy.expand(pairs=pairs * 3)

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Mapping over matched pairs

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