python.TrigValSteering.CheckSteps.HistCountStep Node1 python.TrigValSteering.Check Steps.HistCountStep + input_file + executable + args + __init__() + configure() Node2 python.TrigValSteering.Check Steps.InputDependentStep + input_file + result + __init__() + run() Node2->Node1 Node3 Step Node3->Node2