code: def new_fills_report(self,
                         start_date,
                         end_date,
                         account_id=None,
                         product_id='BTC-USD',
                         format=None,
                         email=None):
      
      return self._new_report(start_date,
                              'fills',
                              end_date,
                              account_id,
                              product_id,
                              format,
                              email)
docs: `<https://docs.exchange.coinbase.com/#create-a-new-report>`_