InDetPVNNSelection::ConstituentsInputConfig Node1 InDetPVNNSelection ::ConstituentsInputConfig + type + order + selection   Node2 std::string     Node2->Node1 +link_name +name +output_name Node5 InDetPVNNSelection ::InputVariableConfig + type   Node2->Node5 +name Node3 std::basic_string< Char >     Node3->Node2 Node4 std::vector< InDetPVNNSelection ::InputVariableConfig >     Node4->Node1 +inputs Node5->Node4 +elements