docs: def print_series_info(self, series_info, minimal_series_number=1):
          """
          Print series_info from dcmdirstats
          """
          strinfo = ''
          if len(series_info) > minimal_series_number:
              for serie_number in series_info.keys():
                  strl = get_one_serie_info(series_info, serie_number)
                  strinfo = strinfo + strl + '\n'
                  # rint strl
  
          return strinfo