async def METHOD_NAME(self, amodel: ConcActionModel, data: CalculateCollsResult, args: SavecollArgs):
    if args.colheaders or args.heading:
        self._writeheading([''] + [item['n'] for item in data.Head])
    for i, item in enumerate(data.Items, 1):
        self._writerow(
            i, (item['str'], self._formatnumber(item['freq']), *(self._formatnumber(stat['s']) for stat in item['Stats'])))