SUBSCRIBE_RESPONSE: The SUBSCRIBE_RESPONSE WorkItem returns the result of a subscription request made by this Console. This WorkItem is generated when the Console's createSubscription() is called in an asychronous manner, rather than pending for the result. The getParams() method of a SUBSCRIBE_RESPONSE WorkItem will return an instance of the SubscribeParams class. The SubscriptionId object must be used when the subscription is refreshed or cancelled. It must be passed to the Console's refresh_subscription() and cancelSubscription() methods. The value of the SubscriptionId does not change over the lifetime of the subscription. The console handle will be provided by the Agent on each data indication event that corresponds to this subscription. It should not change for the lifetime of the subscription. The getHandle() method returns the reply handle provided to the createSubscription() method call. This handle is merely the handle used for the asynchronous response, it is not associated with the subscription in any other way. Once a subscription is created, the Agent that maintains the subscription will periodically issue updates for the subscribed data. This update will contain the current values of the subscribed data, and will appear as the first SUBSCRIPTION_INDICATION WorkItem for this subscription.@author Fraser Adams
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