export type StateCache = Map<string, Record<string, unknown>>;
export type InstanceTracker = Set<WeakRef<object>>;
export type InstanceKeyMap = WeakMap<object, string>;
export type RebootFlag = {
    value: boolean;
};
export type RebootStats = {
    captured: number;
    restoredKeys: Set<string>;
};
export declare const buildCacheKey: (instance: object, key?: unknown) => string | null;
export declare const captureTrackedInstanceStates: () => void;
export declare const endHmrReboot: () => void;
export declare const getCache: () => Map<any, any>;
export declare const getKeyMap: () => InstanceKeyMap;
export declare const getRebootFlag: () => RebootFlag;
export declare const getRebootStats: () => RebootStats;
export declare const getTracker: () => InstanceTracker;
export declare const isHmrPreserveDev: () => boolean;
export declare const isPreservable: (value: unknown, depth?: number) => boolean;
export declare const restoreFromCacheCore: (instance: object, key: string) => boolean;