Creates a new optimizer object. If there are no parameters given for that particular argument, then that argument will use default value.
StepDecay.new(decayRate: number, timeStepToDecay: integer): ValueSchedulerObject
decayRate: The decay rate for value.
timeStepToDecay: The number of time steps to decay the value.
StepDecay:setDecayRate(decayRate: number)
StepDecay:setTimeStepToDecay(timeStepToDecay: integer)
Reset optimizer’s stored values (excluding the parameters).
StepDecay:reset()