code: def rename_Activation(self, source_node):
      assert source_node.layer.is_block
  
      op = source_node.layer.root_function.owner.name
  
      if op.startswith("relu"):
          new_op = "Relu"
      else:
          raise ValueError()
  
      self._convert_identity_operation(source_node, new_op=new_op)
  
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 38 for calling the CntkParser obj's underlying member method code with example usage: obj.rename_Activation(source_node) without return types