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Wait, that's it? The difference between bad (with italics!) and awesome is being able to reference the garbage half of a multiple return?

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You can embed metadata with sum types on a return object. You can then use the metadata programmatically to increase correctness, enhance readability, and reduce boilerplate. This blog post goes into more details:

http://fsharpforfunandprofit.com/posts/recipe-part2/#series-...

I'm not the GP. Ask them for their full story.

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