import { OSSUploadOptions, OSSUploadLocalItem } from './types';
export declare type UploadOptions = {
    onProgress?: (loaded: number, total: number, speed?: number) => void;
};
export declare type UploadResp<T = any> = {
    url: string;
} & T;
export declare abstract class Client<Options = {}, UploadParams = {}> {
    opt: OSSUploadOptions;
    protected constructor(options: OSSUploadOptions);
    /**
     * 上传单个文件
     * @param item
     * @param params
     * @param options
     */
    abstract upload(item: OSSUploadLocalItem, params?: Partial<UploadParams>, options?: UploadOptions): Promise<UploadResp>;
    /**
     * 获取上传后的文件地址
     * @param item
     * @param params
     */
    abstract getUploadedUrl(item: OSSUploadLocalItem, params?: Partial<UploadParams>): Promise<UploadResp>;
    /**
     * 检查系统默认的配置
     * 敏感配置建议通过环境或者系统配置获取，不要直接暴露到项目中
     */
    abstract get globalOptions(): Partial<Options>;
    /**
     * 通用上传参数
     */
    abstract get globalUploadParams(): Partial<UploadParams>;
}