code: def get_meter_reader(
      self, scale_data: np.ndarray, pointer_data: np.ndarray
  ):
      scale_flag = False
      pointer_flag = False
      one_scale_start = 0
      one_scale_end = 0
      one_pointer_start = 0
      one_pointer_end = 0
      scale_location = list()
      pointer_location = 0
      for i in range(LINE_WIDTH - 1):
          if scale_data[i] > 0 and scale_data[i + 1] > 0:
              if scale_flag == False:
                  one_scale_start = i
                  scale_flag = True
          if scale_flag:
              if scale_data[i] == 0 and scale_data[i + 1] == 0:
                  one_scale_end = i - 1
                  one_scale_location = (
                      one_scale_start + one_scale_end
                  ) / 2
                  scale_location.append(one_scale_location)
                  one_scale_start = 0
                  one_scale_end = 0
                  scale_flag = False
          if pointer_data[i] > 0 and pointer_data[i + 1] > 0:
              if pointer_flag == False:
                  one_pointer_start = i
                  pointer_flag = True
          if pointer_flag:
              if pointer_data[i] == 0 and pointer_data[i + 1] == 0:
                  one_pointer_end = i - 1
                  pointer_location = (
                      one_pointer_start + one_pointer_end
                  ) / 2
                  one_pointer_start = 0
                  one_pointer_end = 0
                  pointer_flag = False
  
      scale_num = len(scale_location)
      scales = -1
      ratio = -1
      if scale_num > 0:
          for i in range(scale_num - 1):
              if (
                  scale_location[i] <= pointer_location
                  and pointer_location < scale_location[i + 1]
              ):
                  scales = (
                      i
                      + (pointer_location - scale_location[i])
                      / (
                          scale_location[i + 1]
                          - scale_location[i]
                          + 1e-05
                      )
                      + 1
                  )
          ratio = (pointer_location - scale_location[0]) / (
              scale_location[scale_num - 1] - scale_location[0] + 1e-05
          )
      result = {
          "scale_num": scale_num,
          "scales": scales,
          "ratio": ratio,
      }
      return result
  
imports: import math
  import os
  import base64
  from typing import Union
  import argparse
  import cv2
  import numpy
  import paddlehub
  import paddlex
  import paddle.nn
  from paddlex.seg import transforms
  from paddlehub.module.module import moduleinfo, runnable, serving
label_desc: Use image node_id 6 for calling the BarometerReader obj's underlying member method code with example usage: obj.get_meter_reader(scale_data, pointer_data) and returns: result