@property
def _sell_close_today_order_quantity(self):
    return sum((order.unfilled_quantity for order in self.open_orders if ((order.side == SIDE.SELL) and (order.position_effect == POSITION_EFFECT.CLOSE_TODAY))))
@property
def _sell_close_today_order_quantity(self):
    return sum((order.unfilled_quantity for order in self.open_orders if ((order.side == SIDE.SELL) and (order.position_effect == POSITION_EFFECT.CLOSE_TODAY))))