LumiBlobUtil Node1 LumiBlobUtil + LumiBlobUtil() + xvalue() + yvalue() + xvalue() + yvalue() + clear() + bunchLumis() + unpack() Node2 std::string Node2->Node1 +error Node3 std::basic_string< char > Node3->Node2 Node4 std::vector< double > + elements Node4->Node1 -m_bunchLumis