Used solely by Serial to determine the generation covered when verification is enabled.
Consider removing it due to its infrequent use. (If a need for it arises in the future, consider implementing a feature similar to `VerifyGCType` to streamline the interface.)
Consider removing it due to its infrequent use. (If a need for it arises in the future, consider implementing a feature similar to `VerifyGCType` to streamline the interface.)