Fix last case of value_type in conversion to object_type

types.hpp

@@ -30,7 +30,7 @@ concept object_type = std::is_same_v<T, std::nullptr_t> || std::is_same_v<T, boo
 
 
 template<value_type V>
-using object_type_from_value_type = std::conditional_t<V == Null, std::nullptr_t, std::conditional_t<V == Bool, bool, std::conditional_t<V == Int, long long int, std::conditional_t<V == Float, long double, std::conditional_t<V == String, std::string, std::conditional_t<V == Vector, std::vector<object>, std::map<std::string, object>>>>>>>;
+using object_type_from_value_type = std::conditional_t<V == Null, std::nullptr_t, std::conditional_t<V == Bool, bool, std::conditional_t<V == Int, long long int, std::conditional_t<V == Float, long double, std::conditional_t<V == String, std::string, std::conditional_t<V == Vector, std::vector<object>, std::conditional_t<V == Map, std::map<std::string, object>, std::nullptr_t>>>>>>>;
 
 template<object_type T>
 value_type value_type_from_object_type();