code: public static void setLearningRate(ComputationGraph net, ISchedule newLrSchedule) {
          setLearningRate(net, Double.NaN, newLrSchedule);
      }
docs: Set the learning rate schedule for all layers in the network to the specified schedule.
  This schedule will replace any/all existing schedules, and also any fixed learning rate values.<br>
  Note that the iteration/epoch counts will <i>not</i> be reset. Use {@link ComputationGraphConfiguration#setIterationCount(int)}
  and {@link ComputationGraphConfiguration#setEpochCount(int)} if this is required
  
  @param newLrSchedule New learning rate schedule for all layers