code: def expand_list(merged, html_list):
      """
      Fill blanks according to merged cells
      """
      sr, er, sc, ec = merged
      for i in range(sr, er):
          for j in range(sc, ec):
              html_list[i][j] = None
      html_list[sr][sc] = ""
      if ec - sc > 1:
          html_list[sr][sc] += " colspan={}".format(ec - sc)
      if er - sr > 1:
          html_list[sr][sc] += " rowspan={}".format(er - sr)
      return html_list
  
imports: import hashlib
  import os
  import re
  import sys
  from math import sqrt
  import cv2
  import numpy
  from PyQt5.QtCore import QRegExp, QT_VERSION_STR
  from PyQt5.QtGui import QIcon, QRegExpValidator, QColor
  from PyQt5.QtWidgets import QPushButton, QAction, QMenu
  from libs.ustr import ustr
label_desc: Use image node_id 13 for calling a global function with example usage: expand_list(merged, html_list) and returns: html_list