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##### stable_async_base::get_cancellation_slot

(Inherited from `async_base`)

Returns the cancellation_slot associated with this object.

###### Synopsis

    cancellation_slot_type
    get_cancellation_slot() const;

###### Description

If a class derived from `async_base` is a completion handler, then the object returned from this function will be used as the associated cancellation_slot of the derived class.