MuonR4::TruthTrackSeederTool Node1 MuonR4::TruthTrackSeederTool - m_segmentKey - m_truthLinkKey - m_detMgr - m_ctxProvider + initialize() + findTrackSeeds() + estimateStartParameters() Node2 extends< AthAlgTool, ITrackSeedingTool >     Node2->Node1