/**
 * @license chowa v1.1.3
 *
 * Copyright (c) Chowa Techonlogies Co.,Ltd.(http://www.chowa.cn).
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
import { ProgressProps } from '../progress';
export interface StorageFile {
    name: string;
    [key: string]: any;
}
export interface UploadFile {
    name: string;
    params: {
        [key: string]: any;
    };
    uuid: string;
    progress: number;
    status: ProgressProps['status'];
    xhr?: XMLHttpRequest;
    file?: File;
}
export declare function getFileUuid(): string;
export declare function completeFileStorage(files: StorageFile[]): UploadFile[];
export declare function transformToStorageFile(uploadFile: UploadFile): StorageFile;
export declare function computedFileExt(file: File): string;