def cancel_order(self, id, symbol=None, params={}):
    self.load_markets()
    request = {'orderId': id}
    return self.userPostCancelOrder(self.extend(request, params))
def cancel_order(self, id, symbol=None, params={}):
    self.load_markets()
    request = {'orderId': id}
    return self.userPostCancelOrder(self.extend(request, params))