docs: def hira2hkata(text, ignore=''):
      """Convert Hiragana to Half-width (Hankaku) Katakana
  
      Parameters
      ----------
      text : str
          Hiragana string.
      ignore : str
          Characters to be ignored in converting.
  
      Return
      ------
      str
          Half-width Katakana string.
  
      Examples
      --------
      >>> print(jaconv.hira2hkata('ともえまみ'))
      ﾄﾓｴﾏﾐ
      >>> print(jaconv.hira2hkata('ともえまみ', ignore='み'))
      ﾄﾓｴﾏみ
      """
      if ignore:
          h2hk_map = _exclude_ignorechar(ignore, H2HK_TABLE.copy())
          return _convert(text, h2hk_map)
      return _convert(text, H2HK_TABLE)