code: def init_op(self):
      pass
  
file_path: insightface/recognition/arcface_paddle/deploy/pdserving/web_service.py
imports: from paddle_serving_server.web_service import WebService, Op
  import numpy
  import cv2
  import base64
label_desc: Use image node_id 1 for calling the ArcFaceOp obj's underlying member method code with example usage: obj.init_op() without return types