code: def set_in_out_name(self, input_name, output_name):
      self.input_name = input_name
      self.output_name = output_name
  
imports: import io
  import os
  import sys
  import base64
  import argparse
  import yaml
  import numpy
  from PIL import Image
  from paddle_serving_server.web_service import WebService, Op
  from preprocess_ops import ResizeImage, CenterCropImage, NormalizeImage, ToCHW, Compose
label_desc: Use image node_id 2 for calling the SegOp obj's underlying member method code with example usage: obj.set_in_out_name(input_name, output_name) without return types