{ "type" : ["str", "multistep"], "batch_size": ["int", 128], "epochs" : ["int", 200], "momentum" : ["float", 0.9], "decay" : ["float", 0.0005], "LR" : ["float", 0.01], "milestones": ["int", [1 , 60, 120, 160]], "gammas" : ["float", [10, 0.2, 0.2, 0.2]] }