bytevector-s64-native-ref, bytevector-s64-native-set!,
bytevector-u64-ref, bytevector-u64-set!,
bytevector-s64-ref, and bytevector-s64-set!.
bytevector-s64-native-ref, bytevector-s64-native-set!,
bytevector-u64-ref, bytevector-u64-set!,
bytevector-s64-ref, and bytevector-s64-set!.