/**
 *
 * This file may have been modified by Bytedance Inc. (“Bytedance Inc.'s Modifications”). 
 * All Bytedance Inc.'s Modifications are Copyright (year) Bytedance Inc..  
 * 
 * This source code is licensed under the Apache license.
 * See LICENSE file in the project root for license information.
 *
 */
import { RcFile, UploadFile, InternalUploadFile } from './interface';
export declare function file2Obj(file: RcFile): InternalUploadFile;
export declare function updateFileList(file: UploadFile<any>, fileList: UploadFile<any>[]): UploadFile<any>[];
export declare function getFileItem(file: RcFile, fileList: UploadFile[]): UploadFile<any>;
export declare function removeFileItem(file: UploadFile, fileList: UploadFile[]): UploadFile<any>[] | null;
export declare const isImageUrl: (file: UploadFile<any>) => boolean;
export declare function previewImage(file: File | Blob): Promise<string>;