export declare class ParentPool<S, Id = string> {
    private pool;
    private onParentDelete?;
    constructor(onParentDelete?: (id: Id, state: S) => void);
    createParent(id: Id, state: S): void;
    getParentState(parentId: Id): S;
    has(parentId: Id): boolean;
    claimParent(parentId: Id, selfId: Id): void;
    /**
     * A more tolerant method that will drop itself from a claim on itself and not throw if not found because
     * child claims can persist and potentially trigger dropSelf's
     * @param selfParentId
     */
    tryDropSelf(selfParentId: Id): void;
    dropParent(parentId: Id, selfId: Id): void;
    clear(): void;
}