code: def QA_fetch_financial_report_adv(code, start, end=None, ltype='EN'):
      
  
      if end is None:
  
          return QA_DataStruct_Financial(QA_fetch_financial_report(code, start, ltype=ltype))
      else:
          series = pd.Series(
              data=month_data, index=pd.to_datetime(month_data), name='date')
          timerange = series.loc[start:end].tolist()
          return QA_DataStruct_Financial(QA_fetch_financial_report(code, timerange, ltype=ltype))
docs: 高级财务查询接口
      Arguments:
          code {[type]} -- [description]
          start {[type]} -- [description]
      Keyword Arguments:
          end {[type]} -- [description] (default: {None})