code: def load(cls, sc, path):
          
          java_model = sc._jvm.org.apache.spark.mllib.regression.IsotonicRegressionModel.load(
              sc._jsc.sc(), path)
          py_boundaries = _java2py(sc, java_model.boundaryVector()).toArray()
          py_predictions = _java2py(sc, java_model.predictionVector()).toArray()
          return IsotonicRegressionModel(py_boundaries, py_predictions, java_model.isotonic)
docs: Load an IsotonicRegressionModel.