code: public SDVariable clipByValue(SDVariable x, double clipValueMin, double clipValueMax) {
          return clipByValue(null, x, clipValueMin, clipValueMax);
      }
docs: Element-wise clipping function:<br>
  out[i] = in[i] if in[i] >= clipValueMin and in[i] <= clipValueMax<br>
  out[i] = clipValueMin if in[i] < clipValueMin<br>
  out[i] = clipValueMax if in[i] > clipValueMax<br>
  
  @param x            Input variable
  @param clipValueMin Minimum value for clipping
  @param clipValueMax Maximum value for clipping
  @return Output variable