import { SpiderStore, SpiderStoreOpts } from './store';
import { SpiderHandle } from '../handle';
export declare type SimpleStorePostSaveCallback = (filename: string, h: SpiderHandle) => Promise<void> | void;
export declare type SimpleStoreDataCallback = (h: SpiderHandle) => Promise<string | null> | string | null;
export declare type SimpleStoreFilenameCallback = (h: SpiderHandle) => string | null;
export interface SimpleStoreOpts extends SpiderStoreOpts {
    filename: string | SimpleStoreFilenameCallback;
    encoding?: string;
    data?: SimpleStoreDataCallback;
    post?: SimpleStorePostSaveCallback;
}
export declare class SimpleStore extends SpiderStore {
    protected opts: SimpleStoreOpts;
    constructor(opts: SimpleStoreOpts);
    save(h: SpiderHandle): Promise<boolean>;
    protected getStorableData(h: SpiderHandle): Promise<string | null>;
    protected getFilename(h: SpiderHandle): string | null;
}
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