• boost::serialization::access : ObjectProperties
• ShutdownPolicy< pool_type > : boost::threadpool::detail::pool_core< Task, SchedulingPolicy, SizePolicy, SizePolicyController, ShutdownPolicy >
• SizePolicy< pool_type > : boost::threadpool::detail::pool_core< Task, SchedulingPolicy, SizePolicy, SizePolicyController, ShutdownPolicy >
• worker_thread< pool_type > : boost::threadpool::detail::pool_core< Task, SchedulingPolicy, SizePolicy, SizePolicyController, ShutdownPolicy >