exerciser.ConditionsTests Node1 exerciser.ConditionsTests + chain_name + chain_label + label_ind + __init__() + make_helper_tool() + logfile_name() + make_event_generator() Node2 exerciser.CombinationsTests + n_sgnl + n_bkgd + bkgd_etmax + chain_name + __init__() + make_chain_dict() + make_helper_tool() + make_event_generator() + logfile_name() Node2->Node1 Node3 object Node3->Node2