code: def __call__(self, img):
      starttime = time.time()
      if self.args.benchmark:
          self.autolog.times.start()
  
      ori_im = img.copy()
      data = {"image": img}
      data = transform(data, self.preprocess_op)
      img = data[0]
      if img is None:
          return None, 0
      img = np.expand_dims(img, axis=0)
      img = img.copy()
      if self.args.benchmark:
          self.autolog.times.stamp()
      if self.use_onnx:
          input_dict = {}
          input_dict[self.input_tensor.name] = img
          outputs = self.predictor.run(self.output_tensors, input_dict)
      else:
          self.input_tensor.copy_from_cpu(img)
          self.predictor.run()
          outputs = []
          for output_tensor in self.output_tensors:
              output = output_tensor.copy_to_cpu()
              outputs.append(output)
          if self.args.benchmark:
              self.autolog.times.stamp()
  
      preds = {}
      preds["structure_probs"] = outputs[1]
      preds["loc_preds"] = outputs[0]
  
      shape_list = np.expand_dims(data[-1], axis=0)
      post_result = self.postprocess_op(preds, [shape_list])
  
      structure_str_list = post_result["structure_batch_list"][0]
      bbox_list = post_result["bbox_batch_list"][0]
      structure_str_list = structure_str_list[0]
      structure_str_list = (
          ["<html>", "<body>", "<table>"]
          + structure_str_list
          + ["</table>", "</body>", "</html>"]
      )
      elapse = time.time() - starttime
      if self.args.benchmark:
          self.autolog.times.end(stamp=True)
      return (structure_str_list, bbox_list), elapse
  
file_path: PaddleOCR/ppstructure/table/predict_structure.py
imports: import os
  import sys
  import cv2
  import numpy
  import time
  import json
  import tools.infer.utility
  from ppocr.data import create_operators, transform
  from ppocr.postprocess import build_post_process
  from ppocr.utils.logging import get_logger
  from ppocr.utils.utility import get_image_file_list, check_and_read
  from ppocr.utils.visual import draw_rectangle
  from ppstructure.utility import parse_args
label_desc: Use image node_id 2 for calling the TableStructurer obj's underlying member method code with example usage: obj.__call__(img) and returns: structure_str_list,  bbox_list,  elapse, None,  int