Create an unordered map having the same value, hasher, key-equality comparator, and max_load_factor as the specified original, and using the specified basicAllocator to supply memory. If the ALLOCATOR type is bsl::allocator (the default), then basicAllocator shall be convertible to bslma::Allocator *.
Declared in <bslstl_unorderedmap.h>
unordered_map(
unordered_map<basic_string<char>, Json, TransparentHash, TransparentEqualTo> const& original,
type_identity<allocator<pair<basic_string<char> const, Json>>>::type const& basicAllocator);