import { EntityDict } from '../../oak-app-domain';
import { CosBackend } from "../../types/Cos";
import { OpSchema } from '../../oak-app-domain/ExtraFile/Schema';
import Unknown from './unknown';
import { BRC } from '../..';
export default class UnknownBackend extends Unknown implements CosBackend<EntityDict> {
    private getConfigAndInstance;
    composeFileUrlBackend(options: {
        application: EntityDict['application']['Schema'];
        extraFile: OpSchema;
        context: BRC<EntityDict>;
        style?: string;
    }): Promise<string>;
    formUploadMeta(application: EntityDict['application']['Schema'], extraFile: OpSchema): Promise<void>;
    checkWhetherSuccess(application: EntityDict['application']['Schema'], extraFile: OpSchema): Promise<boolean>;
    removeFile(application: EntityDict['application']['Schema'], extraFile: OpSchema): Promise<void>;
}