code: def dump(self, path=None):
      if path is None:
          path = self.args.dump
      self.model.save_checkpoint(path, 0)
      print(
          "MXNet checkpoint file is saved with prefix [{}] and iteration 0, generated by [{}.py] and [{}].".format(
              path, self.args.n, self.args.w
          )
      )
  
file_path: MMdnn/mmdnn/conversion/examples/mxnet/imagenet_test.py
imports: from collections import namedtuple
  import numpy
  from mmdnn.conversion.examples.imagenet_test import TestKit
  import mxnet
label_desc: Use image node_id 6 for calling the TestMXNet obj's underlying member method code with example usage: obj.dump(path) without return types