code: def _initialize(self):
      self.default_pretrained_model_path = os.path.join(
          self.directory, "darknet53_model"
      )
      self.label_names = load_label_info(
          os.path.join(self.directory, "label_file.txt")
      )
      self.infer_prog = None
      self.pred_out = None
      self._set_config()
  
imports: import os
  import ast
  import argparse
  import numpy
  import paddle.fluid
  import paddlehub
  from paddlehub.module.module import moduleinfo, runnable
  from paddle.fluid.core import PaddleTensor, AnalysisConfig, create_paddle_predictor
  from paddlehub.common.paddle_helper import add_vars_prefix
  from paddlehub.io.parser import txt_parser
  from darknet53_imagenet.darknet import DarkNet
  from darknet53_imagenet.processor import load_label_info
  from darknet53_imagenet.data_feed import test_reader
label_desc: Use image node_id 1 for calling the DarkNet53 obj's underlying member method code with example usage: obj._initialize() without return types