All of those suggestions do have merit. (I especially like the Patterns one!) However, I'm pretty positive that there are no modules that support value inheritance. Why? Because, as far as I know, it's a bunk way of inheriting. But, is it? Could it be useful for something?

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We are the carpenters and bricklayers of the Information Age.

Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.