Rec::IGNNVertexFitterInterface Node1 Rec::IGNNVertexFitterInterface + fitAllVertices() + interfaceID() Node3 Rec::GNNVertexFitterTool + m_vertexFitterTool + m_trackLinksKey + m_trackOriginsKey + m_vertexLinksKey + m_eventInfoKey + m_jetWriteDecorKeyVertexLink + m_jetWriteDecorKeyVertex Number + m_beamSpotKey + m_thePV - m_deco_mass - m_deco_pt - m_deco_charge - m_deco_vPos - m_deco_lxy - m_deco_sig3D - m_deco_deltaR - m_deco_ntrk - m_deco_lxyz - m_deco_eFrac and 14 more... + GNNVertexFitterTool() + ~GNNVertexFitterTool() + initialize() + finalize() + fitAllVertices() - TotalMom() - vrtVrtDist() Node1->Node3 Node2 IAlgTool Node2->Node1