code: def str_count(s):
      """
      Count the number of Chinese characters,
      a single English character and a single number
      equal to half the length of Chinese characters.
      args:
          s(string): the input of string
      return(int):
          the number of Chinese characters
      """
      import string
  
      count_zh = count_pu = 0
      s_len = len(s)
      en_dg_count = 0
      for c in s:
          if c in string.ascii_letters or c.isdigit() or c.isspace():
              en_dg_count += 1
          elif c.isalpha():
              count_zh += 1
          else:
              count_pu += 1
      return s_len - math.ceil(en_dg_count / 2)
  
imports: import argparse
  import os
  import sys
  import platform
  import cv2
  import numpy
  import paddle
  from PIL import Image, ImageDraw, ImageFont
  import math
  from paddle import inference
  import time
  import ast
label_desc: Use image node_id 9 for calling a global function with example usage: str_count(s) and returns: unknown