code: def gen_IR(self):
      self.IR_layer_map = dict()
      for layer in self.mxnet_graph.topological_sort:
          current_node = self.mxnet_graph.get_node(layer)
          node_type = current_node.type
          if hasattr(self, "rename_" + node_type):
              func = getattr(self, "rename_" + node_type)
              func(current_node)
  
          else:
              self.rename_UNKNOWN(current_node)
  
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 11 for calling the MXNetParser obj's underlying member method code with example usage: obj.gen_IR() without return types