MuonR4::MlMsTrackSeeder::VariantCounters Node1 MuonR4::MlMsTrackSeeder ::VariantCounters     Node2 std::array< std::atomic < std::size_t >, 3 >     Node2->Node1 +seedClass Node3 std::atomic< std::size_t > + ptr   Node3->Node1 +pureMainNotPure Node3->Node2 +elements