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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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