Mariner Backtesting - order.cancel()

# Copyright Cloudquant, LLC. All right reserved.
# Cancel Order - CQ LITE & ELITE - Cancel Order
# Run on 1/18/2018 with GOOG as the symbol for testing purposes. We start checking at 12:50 with the GOOG price around 127.5
# We deliberately place an impossible Limit Buy order for GOOG @ $10 which will obviously never reach a fill.
# We capture the order handle as we place the order.
# Ten minutes later, if it has not been filled (!), we cancel the order using the symbol name and the order handle.

from cloudquant.interfaces import Strategy
class New_Order_Method_Cancel(Strategy):

    @classmethod
    def is_symbol_qualified(cls, symbol, md, service, account):
        return symbol == 'GOOG'

    def on_start(self, md, order, service, account):
        self.status = 0
        self.order_handle = 0

    def on_minute_bar(self, event, md, order, service, account, bar):
        if event.timestamp >= service.time(12,50):
            time_string =service.time_to_string(event.timestamp, format='%H:%M:%S') # going to print this a few times so no point repeatedly calling it and code is easier to read.
            mbar = bar.minute(start=-1)
            mlow = mbar.low[0]
            mhigh = mbar.high[0]
            print("{} -  prevbarlow{:8.2f}  bid{:8.2f}  last{:8.2f}  ask{:8.2f}  prevbarhigh{:8.2f}".format(time_string, mlow,md.L1.bid, md.L1.last, md.L1.ask,mhigh))

            if self.status==0: 
                self.order_handle_b = order.send(self.symbol, 'buy', 10, type='LMT', price=10)  # Buy  Limit - This price will never be reached
                print("{} -  Impossible Buy  Limit order sent for GOOG @ $10 {}".format(time_string ,self.symbol))
                self.status = 1
        if event.timestamp >= service.time(13,0) and self.status == 1: # 10 mins have passed with no fill...
                self.order_handle_bc = order.cancel(self.symbol, order_id=self.order_handle_b)
                print("{} -  10 mins have passed with no fill - Cancelled Buy  {}".format(time_string ,self.symbol))
                self.status = 2
                service.terminate()


# Note : on_fill will only be called for CQ Elite users 
    def on_fill(self, event, md, order, service, account): 
        if self.status == 1:
            print(event)
            print("{} -  Filled,  price{:8.2f}".format(service.time_to_string(event.timestamp, format='%H:%M:%S'), event.price))
            self.status == 2