🏠APIprotoNamespacescoresdkNamespacesactivity_taskOn this pageactivity_task Namespace activity_task. Namespaces ActivityCancellationDetails ActivityTask Cancel Start WorkflowTaskAttempt Enumerations ActivityCancelReason Classes ActivityCancellationDetails ActivityTask Cancel Start WorkflowTaskAttempt Interfaces IActivityCancellationDetails IActivityTask ICancel IStart IWorkflowTaskAttempt