| 1638 | class Serializer, class U = T, |
| 1639 | typename std::enable_if<!has_mapped_type<U>::value>::type* = nullptr> |
| 1640 | void serialize_bucket_values(Serializer& /*serializer*/, |
| 1641 | const array_bucket& /*bucket*/) const {} |
| 1642 | |
| 1643 | template <class Serializer, class U = T, |
| 1644 | typename std::enable_if<has_mapped_type<U>::value>::type* = nullptr> |