public SDVariable pad(String name, SDVariable input, SDVariable padding, PadMode PadMode,
      double constant) {
    SDValidation.validateNumerical("pad", "input", input);
    SDValidation.validateNumerical("pad", "padding", padding);
    SDVariable out =  new org.nd4j.linalg.api.ops.impl.transforms.Pad(sd,input, padding, PadMode, constant).outputVariable();