export declare class DataProvider<T> {
    private static nextID;
    private name?;
    private busy;
    private lastRequestTime;
    private cacheTime;
    private data;
    private callbacks;
    private wasError;
    private executor;
    constructor(executor: () => Promise<{
        data: T | null | undefined;
        error?: boolean;
    }>, cacheTime?: number, name?: string);
    forceUpdate(): Promise<void>;
    localUpdate(data: T): void;
    getData(): Promise<T | null | undefined>;
}