import { AuthorizedHttpClient } from '../utils/api-request';
import { Bucket } from './bucket';
interface IStratusBucketSignature {
    signature: string | Record<string, unknown>;
    expiry_time: number;
}
export declare class Util {
    bucket: Bucket;
    _requester: AuthorizedHttpClient;
    userType: string;
    userScope: string;
    static bucketSignatures: Record<string, IStratusBucketSignature>;
    constructor(bucket: Bucket);
    _getUserType(): string;
    _getUserScope(): string;
    static getSignature(bucketName: string): IStratusBucketSignature;
    static setSignature(bucketName: string, signature: IStratusBucketSignature): void;
    getBucketSignature(): Promise<unknown | undefined>;
}
export {};