code: def bar(it, label='', width=32, hide=None, empty_char=' ', filled_char=None, expected_size=None, every=1):
      
      if filled_char is None:
          filled_char_tmp = b'\xe2\x96\x88'.decode()
          filled_char = "\033[0;37m" + filled_char_tmp + "\033[0m"
  
      count = len(it) if expected_size is None else expected_size
      with Bar(label=label, width=width, hide=hide, expected_size=count, every=every, empty_char=empty_char, filled_char=filled_char) as mybar:
          for i, item in enumerate(it):
              if isinstance(item, tuple) and len(item) == 2:
                  mybar.label = item[0]
                  item = item[1]
              yield item
              mybar.show(i)
docs: Progress iterator. Wrap your iterables with it.
      @type it: iterator
      @type label: str
      @type width: int
      @type hide: str, None
      @type empty_char: float
      @type filled_char: float
      @type expected_size: int, None
      @type every: int
      @return: None