> What functionality does such a thing actually need? I think the requirements should be: * The resulting symbol behave exactly like None. IE: the symbol should not be an instance of object, but an instance of its own class * A symbol can optionally be globally unique. * Two symbols created by the same key must not be equal. IE: they have equal key, but different value * if we're trying to create global symbols with the same key, an exception is thrown
This is mostly based on the Javascript spec.
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