docstr: Get the labels which was used when pretraining
  Returns:
       self.labels(dict)
docstr_tok: ["Get","the","labels","which","was","used","when","pretraining","Returns",":","self.labels","(","dict",")"]
code: def get_labels(self):
      """
      Get the labels which was used when pretraining
      Returns:
           self.labels(dict)
      """
      self.labels = {"porn": 1, "not_porn": 0}
      return self.labels
  
file_path: PaddleHub/modules/text/text_review/porn_detection_gru/module.py
imports: import math
  import os
  import paddlehub
  from .processor import load_vocab
  from .processor import postprocess
  from .processor import preprocess
  from paddlehub.compat.task import tokenization
  from paddlehub.module.module import moduleinfo
  from paddlehub.module.module import serving
label_desc: Use image node_id 3 for calling the PornDetectionGRU obj's underlying member method code with example usage: obj.get_labels() and returns: self