Matthew Mathias d3a4b4fc56 Revert "Rename callback blocks to completion to support Swift async and await (#187)" %!s(int64=3) %!d(string=hai) anos
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Unit d3a4b4fc56 Revert "Rename callback blocks to completion to support Swift async and await (#187)" %!s(int64=3) %!d(string=hai) anos