AthDevice::BinaryPageMemoryResourceSvc Node1 AthDevice::BinaryPageMemory ResourceSvc - m_mrTool + initialize() + mr() * initialize() * mr() Node2 extends< AthService, IMemoryResourceSvc >     Node2->Node1 Node3 std::unique_ptr< std ::pmr::memory_resource > + ptr + operator->() Node3->Node1 -m_cachedMR -m_syncedMR