code: def rename_expand_dims(self, source_node):
      IR_node = self.IR_graph.node.add()
  
      # name, op
      self._copy_and_reop(source_node, IR_node)
  
      # input edge
      self.convert_inedge(source_node, IR_node)
  
      # output shape
      self.set_output_shape(source_node, IR_node)
  
      # axis
      if (
          self.data_format in MXNetParser.channels_first
          or self.data_format == "None"
      ):
          IR_node.attr["axis"].i = MXNetParser._convert_axis(
              IR_node, int(source_node.get_attr("axis"))
          )
      else:
          IR_node.attr["axis"].i = int(source_node.get_attr("axis"))
  
imports: import os
  import sys
  import math
  import mxnet
  import numpy
  from mmdnn.conversion.mxnet.mxnet_graph import MXNetGraph
  import mmdnn.conversion.common.IR.graph_pb2
  from mmdnn.conversion.common.IR.graph_pb2 import NodeDef, GraphDef, DataType
  from mmdnn.conversion.common.DataStructure.parser import Parser
  from mmdnn.conversion.common.utils import *
label_desc: Use image node_id 37 for calling the MXNetParser obj's underlying member method code with example usage: obj.rename_expand_dims(source_node) without return types