refactor: result-code types for cmd-functions #70
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The cmd functions currently always only return 0 or 1. Add types to express this in their signature. Every function gets their own type in preparation for potentially more codes that are not shared between functions.
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The cmd functions currently always only return 0 or 1. Add types to express this in their signature. Every function gets their own type in preparation for potentially more codes that are not shared between functions.