cmpExerciser.FastReductionLabeledCompTests Node1 cmpExerciser.FastReduction LabeledCompTests + chain_name + chain_label + logname + __init__() + make_helper_tools() Node2 cmpExerciser.Combinations Tests + __init__() + make_chain_dict() + make_helper_tool() + logfile_name() Node2->Node1 Node3 object Node3->Node2