declare type CacheKey = string;
declare type Callback = (data: any) => void;
interface Task {
    request: () => Promise<any>;
    cacheKey: CacheKey;
    callback: Callback;
}
declare class Cache {
    private queue;
    private cached;
    request(): Promise<void>;
    flushCallback(cacheKey: CacheKey): void;
    registerCallback(cacheKey: CacheKey, callback: Callback): void;
    apply(newTask: Task): void;
    get(cacheKey: CacheKey): any;
}
declare const globalCache: Cache;
export default globalCache;