code: def rename_DataInput(self, source_node):
      IR_node = self._convert_identity_operation(
          source_node, new_op="DataInput"
      )
      shape = [-1] + list(source_node.layer.shape)
      assign_IRnode_values(
          IR_node,
          {
              "shape": list_to_shape(
                  self.channel_first_shape_to_IR(shape)
              )
          },
      )
  
imports: import os
  import numpy
  from six.moves import xrange
  import cntk
  from mmdnn.conversion.cntk.cntk_graph import CntkGraph
  import mmdnn.conversion.common.IR.graph_pb2
  from mmdnn.conversion.common.IR.graph_pb2 import NodeDef, GraphDef, DataType
  from mmdnn.conversion.common.utils import *
  from mmdnn.conversion.common.DataStructure.parser import Parser
label_desc: Use image node_id 27 for calling the CntkParser obj's underlying member method code with example usage: obj.rename_DataInput(source_node) without return types