def marginSell(self, currencyPair, rate, amount, lendingRate=None):
        """Places a margin sell order in a given market. Parameters and output
        are the same as for the marginBuy method."""
        return self._private('marginSell', currencyPair=currencyPair, rate=rate,
                             amount=amount, lendingRate=lendingRate)
def marginSell ( self , currencyPair , rate , amount , lendingRate = None ) : return self . _private ( 'marginSell' , currencyPair = currencyPair , rate = rate , amount = amount , lendingRate = lendingRate )
Places a margin sell order in a given market. Parameters and output
        are the same as for the marginBuy method.