code: def rename_DataInput(self, source_node):
      IR_node = self._convert_identity_operation(
          source_node, new_op="DataInput"
      )
  
imports: import os
  import numpy
  from mmdnn.conversion.common.utils import *
  from mmdnn.conversion.darknet.prototxt import *
  from mmdnn.conversion.darknet.darknet_utils import *
  from mmdnn.conversion.darknet.darknet_graph import DarknetGraph
  import mmdnn.conversion.common.IR.graph_pb2
  from mmdnn.conversion.common.DataStructure.parser import Parser
  from mmdnn.conversion.common.IR.graph_pb2 import NodeDef, GraphDef, DataType
label_desc: Use image node_id 8 for calling the DarknetParser obj's underlying member method code with example usage: obj.rename_DataInput(source_node) without return types