code: def __load(arff):
      
      attrs = arff['attributes']
      attrs_t = []
      for attr in attrs:
          if isinstance(attr[1], list):
              attrs_t.append("%s@{%s}" % (attr[0], ','.join(attr[1])))
          else:
              attrs_t.append("%s@%s" % (attr[0], attr[1]))
  
      df = pd.DataFrame(data=arff['data'], columns=attrs_t)
      return df
docs: load liac-arff to pandas DataFrame
      :param dict arff:arff dict created liac-arff
      :rtype: DataFrame
      :return: pandas DataFrame