import { Logger, URI } from "@adviser/cement";
import { KeyBagProvider, SuperThis, SysFileSystem } from "@fireproof/core-types-base";
interface KeyBagCtx {
    readonly dirName: string;
    readonly sysFS: SysFileSystem;
    readonly fName: string;
}
export declare class KeyBagProviderFile implements KeyBagProvider {
    _prepare(id: string): Promise<KeyBagCtx>;
    private readonly url;
    readonly logger: Logger;
    readonly sthis: SuperThis;
    constructor(url: URI, sthis: SuperThis);
    del(id: string): Promise<void>;
    get(id: string): Promise<NonNullable<unknown> | undefined>;
    set(id: string, item: NonNullable<unknown>): Promise<void>;
}
export {};