/**
 * Represents what happened when an event store was asked to remove an observer.
 */
export declare enum ObserverRemovalOutcome {
    /** The observer and everything keyed to it was removed. */
    Removed = "Removed",
    /** No observer with that identifier is registered in the event store, so there was nothing to remove. */
    ObserverNotFound = "ObserverNotFound",
    /** The observer is running in at least one namespace, so it is still a live observer and cannot be removed. */
    ObserverActive = "ObserverActive",
    /** A client is still subscribed to the observer in at least one namespace, so its declaring code is still present. */
    ObserverSubscribed = "ObserverSubscribed"
}
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