How to intercept child workflow cancelRequested event

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1

I want to use interceptor to monitor Workflow’s lifecycle events like this post:
Advice on Managing Workflow Lifecycle or Interceptors
I found ExternalWorkflowExecutionCancelRequested in main workflow’s event history and WorkflowExecutionCancelRequested in child workflow’s event history when main workflow cancelRequested，but I can’t find way to intercept it.
Is there any way to intercept this?
Is that only happen in server not in worker?

2

You intercept WorkflowOutboundCallsInterceptor.executeChildWorkflow and set your own cancellation handler. See CancellationScope for more info about how cancellations are propagated and implemented.

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