code: def escape_latex_str_if_str(value):
      '''Escape a latex string'''
      if not isinstance(value, str):
          return value
      for regex, replace_text in REGEX_ESCAPE_CHARS:
          value = re.sub(regex, replace_text, value)
      value = re.sub(REGEX_BACKSLASH, r'\\\\', value)
      return valuf escape_latex_str_if_str(value):
      '''Escape a latex string'''
      if not isinstance(value, str):
          return value
      for regex, replace_text in REGEX_ESCAPE_CHARS:
          value = re.sub(regex, replace_text, value)
      value = re.sub(REGEX_BACKSLASH, r'\\\\', value)
      return value
docs: Escape a latex string