import { Subscription, TeardownLogic } from 'rxjs';
import { KeyValue } from '@rxap/utilities';
export declare enum SubscriptionHandlerErrorTypes {
    NOT_FOUND = "Subscription with specified key not found",
    CLOSED = "Subscription with specified key is closed"
}
export declare class SubscriptionHandlerError extends Error {
    type: SubscriptionHandlerErrorTypes;
    key: string;
    constructor(type: SubscriptionHandlerErrorTypes, key: string);
}
/**
 * Provide the same functionality as Subscription from rxjs.
 * With the extation that the subscriptions can be group added/unsubscribed
 *
 * @deprecated removed
 */
export declare class SubscriptionHandler {
    /**
     * @internal
     */
    static DEFAULT_KEY: string;
    /**
     * A map of subscriptions
     *
     * @internal
     */
    readonly subscriptions: Map<string, Subscription>;
    /**
     * Adds a tear down to be called during the unsubscribe() of this
     * Subscription. Can also be used to add a child subscription.
     *
     * If the tear down being added is a subscription that is already
     * unsubscribed, is the same reference `add` is being called on, or is
     * `Subscription.EMPTY`, it will not be added.
     *
     * If this subscription is already in an `closed` state, the passed
     * tear down logic will be executed immediately.
     *
     * When a parent subscription is unsubscribed, any child subscriptions that were added to it are also unsubscribed.
     *
     * @param {TeardownLogic} teardown The additional logic to execute on
     * teardown.
     * @return {Subscription} Returns the Subscription used or created to be
     * added to the inner subscriptions list. This Subscription can be used with
     * `remove()` to remove the passed teardown logic from the inner subscriptions
     * list.
     */
    add(teardown: TeardownLogic): Subscription;
    /**
     * Adds a tear down to be called during the unsubscribe() of this
     * Subscription. Can also be used to add a child subscription.
     *
     * If the tear down being added is a subscription that is already
     * unsubscribed, is the same reference `add` is being called on, or is
     * `Subscription.EMPTY`, it will not be added.
     *
     * If this subscription is already in an `closed` state, the passed
     * tear down logic will be executed immediately.
     *
     * When a parent subscription is unsubscribed, any child subscriptions that were added to it are also unsubscribed.
     *
     * @param key the subscription group key
     * @param {TeardownLogic} teardown The additional logic to execute on
     * teardown.
     * @return {Subscription} Returns the Subscription used or created to be
     * added to the inner subscriptions list. This Subscription can be used with
     * `remove()` to remove the passed teardown logic from the inner subscriptions
     * list.
     */
    add(key: string, teardown: TeardownLogic): Subscription;
    has(key: string): boolean;
    get(key: string): Subscription | undefined;
    set(key: string, teardown: TeardownLogic): Subscription;
    /**
     * Disposes the resources held by the subscription. May, for instance, cancel
     * an ongoing Observable execution or cancel any other type of work that
     * started when the Subscription was created.
     *
     * @param key (optional) the target group of subscriptions
     */
    unsubscribe(key?: string): Subscription;
    /**
     * Disposes all the resources held by the subscription handler. May, for instance, cancel
     * an ongoing Observable execution or cancel any other type of work that
     * started when the Subscription was created.
     */
    unsubscribeAll(): KeyValue<Subscription>;
    /**
     * Resets the specified subscription group.
     * Each Subscription in the group will be unsubscribed before the new subscription
     * instance is created
     *
     * @param key (optional) the target group of subscriptions
     */
    reset(key?: string): void;
    resetAll(): void;
}