import { type AxiosResponse } from 'axios';
export interface ChooseFilesOptions {
    multiple?: boolean;
    accept?: string;
}
/**
 * 选择文件
 */
export declare function chooseFiles(options?: ChooseFilesOptions): Promise<File[]>;
/**
 * 从 url 或 File 对象中推测文件 mime 主类型或特殊子类型，
 * 例如：image, video, audio, zip等
 */
export declare function getFileType(urlOrFile: string | File): string;
export declare function readAsDataURL(file: File): Promise<string>;
export declare function readAsArrayBuffer(file: File): Promise<ArrayBuffer>;
/**
 * 下载附件
 */
export declare function downloadAttachment(response: AxiosResponse, options?: {
    filename?: string;
}): void;
export declare const imageExtensions: string[];
/**
 * 判断是否为图片地址
 */
export declare function isImageUrl(url: string): boolean;