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For the very common case of wanting to return an optional result, e.g., where you would want to return Option\[T], instead return a Maybe\[T] for objects, and use MaybeInt, MaybeLong, etc. for numbers. See below about avoiding Option type.
Similar common return types are small tuples of values, and the Either\[L, R] and Try\[T] types.
See also the Cursor & Accessor Idiom below.
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