export declare const qiniuUrl: (key: string, url: string) => string;
export declare const fileSize: (bytes: number) => string;
export declare const qiniuImageView: (url: string, mode: number, height: number) => string;
export declare const computeChecksumMd5: (file: File) => Promise<unknown>;
export declare const saveNecessaryData: (token: string, grpcHost: string, clientID: string) => void;