ReferenceAvailableConstructorConstruct `telion_api.Subscription` with the installed signature `(cancel: 'Callable[[], None]') -> 'None'`.Construct telion_api.Subscription with the installed signature (cancel: 'Callable[[], None]') -> 'None'. Contract PropertyValuesymboltelion_api.Subscriptionsignature(cancel: 'Callable[[], None]') -> 'None'returntelion_api.Subscription Signature Subscription(cancel: 'Callable[[], None]') -> 'None'