Same as the preceding overload, using the specified allocator.
Declared in <bslstl_unorderedmultiset.h>
template<
class = void,
class = void>
requires std::is_invocable_v<HASH, const KEY &> && bsl::IsStdAllocator<ALLOCATOR>::value
unordered_multiset(
std::initializer_list<KEY> values,
size_type initialNumBuckets,
HASH const& hashFunction,
ALLOCATOR const& basicAllocator);