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Answers and rating deltas for

How do I get the type signature to agree with the scala compiler when extracting a value out of an O

Author Votes Δ
Luis Miguel Mejía Suárez 2 +2.61
Karl Bielefeldt 1 -0.64
Yuval Itzchakov 1 -1.97
Last visited: Jun 17, 2019, 2:59:36 PM