/**
 * @fileoverview MfwUpload 上传器基类
 * @description 提供上传器的基础实现
 */
import type { IUploader, UploadRequestOptions, UploadResult } from './types';
export declare abstract class BaseUploader implements IUploader {
    static uploading: boolean;
    get uploadingFiles(): Set<any>;
    abstract upload(options: UploadRequestOptions): Promise<UploadResult>;
    delete?(url: string): Promise<void>;
    static verifyUpload(rule: any, value: any, cb: (error?: string) => void): void;
}
export declare class FormUploader extends BaseUploader {
    private uploadUrl;
    private businessType?;
    constructor(uploadUrl: string, businessType?: string);
    upload(options: UploadRequestOptions): Promise<UploadResult>;
}
export declare class OssUploader extends BaseUploader {
    private getUploadToken;
    private ossEndpoint;
    private ossBucket;
    private dir?;
    constructor(getUploadToken: () => Promise<string>, ossEndpoint: string, ossBucket: string, dir?: string);
    upload(options: UploadRequestOptions): Promise<UploadResult>;
    private getOssAccessKeyId;
    private getPolicy;
    private getSignature;
}
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