public SDVariable prod(String name, SDVariable x, SDVariable dimensions) {
    SDValidation.validateNumerical("prod", "x", x);
    SDValidation.validateInteger("prod", "dimensions", dimensions);
    SDVariable out =  new org.nd4j.linalg.api.ops.impl.reduce.same.Prod(sd,x, dimensions, false).outputVariable();
    return sd.updateVariableNameAndReference(out, name);