import { FileInfo, FileUploadError, FileUploadInProgress, FileUploadSuccess } from './types';
export declare const formatFileSize: (bytes: number) => string | 0;
export declare const isSameOrigin: (url1: string, url2: string) => boolean;
export declare const isUploadError: (file: FileInfo) => file is FileUploadError;
export declare const isUploadSuccess: (file: FileInfo) => file is FileUploadSuccess;
export declare const isUploadInProgress: (file: FileInfo) => file is FileUploadInProgress;