import { Observable } from '@tanbo/stream';
export interface UploadConfig {
    /** 上传类型 */
    uploadType: string;
    /** 当前值 */
    currentValue: string;
    /** 是否支持返回多个结果 */
    multiple: boolean;
}
export declare abstract class FileUploader {
    abstract upload(config: UploadConfig): Observable<string | string[]>;
}