docstr: text detect module
docstr_tok: ["text","detect","module"]
code: def text_detector_module(self):
      """
      text detect module
      """
      if not self._text_detector_module:
          self._text_detector_module = hub.Module(
              name="chinese_text_detection_db_server",
              enable_mkldnn=self.enable_mkldnn,
          )
      return self._text_detector_module
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import argparse
  import ast
  import copy
  import math
  import os
  import time
  import cv2
  import numpy
  import paddle
  from chinese_ocr_db_crnn_server.character import CharacterOps
  from chinese_ocr_db_crnn_server.utils import base64_to_cv2
  from chinese_ocr_db_crnn_server.utils import draw_ocr
  from chinese_ocr_db_crnn_server.utils import get_image_ext
  from chinese_ocr_db_crnn_server.utils import sorted_boxes
  from paddle.inference import Config
  from paddle.inference import create_predictor
  from PIL import Image
  import paddlehub
  from paddlehub.module.module import moduleinfo
  from paddlehub.module.module import runnable
  from paddlehub.module.module import serving
  from paddlehub.utils.log import logger
label_desc: Use image node_id 3 for calling the ChineseOCRDBCRNNServer obj's underlying member method code with example usage: obj.text_detector_module() and returns: self