code: def create_operator(self, ctx, shapes, dtypes):
      return RPNFPNOHEM3Operator(
          self.stride, self.network, self.dataset, self.prefix
      )
  
file_path: insightface/detection/retinaface/rcnn/PY_OP/rpn_fpn_ohem3.py
imports: from __future__ import print_function
  import sys
  import mxnet
  import numpy
  from distutils.util import strtobool
  from ..config import config, generate_config
label_desc: Use image node_id 5 for calling the RPNFPNOHEM3Prop obj's underlying member method code with example usage: obj.create_operator(ctx, shapes, dtypes) and returns: RPNFPNOHEM3Operator