code: def rename_Threshold(self, source_node):
      IR_node = self._convert_identity_operation(
          source_node, new_op="Relu"
      )
  
imports: import os
  import numpy
  from torch.utils.serialization import load_lua
  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
  from mmdnn.conversion.torch.torch_graph import TorchGraph
label_desc: Use image node_id 7 for calling the TorchParser obj's underlying member method code with example usage: obj.rename_Threshold(source_node) without return types