export declare class InstanceAdditionFileService {
    static readCode(instanceId: string): Promise<{
        [id: string]: string;
    }>;
    static writeCode(instanceId: string, data: {
        [id: string]: string;
    }): Promise<void>;
    static setCode(instanceId: string, afId: string, code: string): Promise<void>;
    static removeCodeItem(instanceId: string, afId: string): Promise<void>;
    static removeCode(instanceId: string): Promise<void>;
}