Closing parent orders (bracket orders) - what to do with child orders?

[kfeeeeee]

Hi,
Please forgive me if this is an already answered questions I couldn't find this specific information.

I created a parent order with a child order being some kind of stop loss. Now, the parent order is executed and the child limit order is submitted/accepted as expected.

self.buy_order = self.buy(transmit=False)

stop_price = self.data.close[0] - 30

self.buy_stop = self.sell(exectype=bt.Order.Stop, price=stop_price,
                        parent=self.buy_order)

In some cases, I need to close my positions by some logic and my question is if I have to cancel the child orders manually, e.g.

self.close()
if self.buy_stop:
    self.cancel(self.buy_stop)

or if there is a better approach to this?

The same question applies for buy_bracket orders. If I close my positions, do I need to manually clean/cancel any associated child_orders stemming from the bracket order?

Thanks!

[kfeeeeee]

Differently put, is there a logic invoked if a parent order is closed regarding its child orders?