code: def predict(self, x):
          
          if isinstance(x, RDD):
              return self.call("predict", x.map(_convert_to_vector))
  
          else:
              return self.call("predict", _convert_to_vector(x))
docs: Predict values for a single data point or an RDD of points using
          the model trained.
  
          .. note:: In Python, predict cannot currently be used within an RDD
              transformation or action.
              Call predict directly on the RDD instead.