docstr: Get_model is not supported in MXNetEstimator
docstr_tok: ["Get_model","is","not","supported","in","MXNetEstimator"]
code: def get_model(self):
      """
      Get_model is not supported in MXNetEstimator
      """
      invalidInputError(False, "not implemented")
  
imports: import os
  import types
  import itertools
  import subprocess
  import ray
  from dmlc_tracker.tracker import get_host_ip
  from bigdl.orca.data.utils import partitions_get_data_label, process_spark_xshards
  from bigdl.orca.ray import OrcaRayContext
  from bigdl.orca.learn.mxnet.mxnet_runner import MXNetRunner
  from bigdl.orca.learn.mxnet.utils import find_free_port
  from bigdl.orca.learn.ray_estimator import Estimator
  from bigdl.dllib.utils.log4Error import *
label_desc: Use image node_id 6 for calling the MXNetEstimator obj's underlying member method code with example usage: obj.get_model() without return types