/**
 * @license
 * Copyright 2024 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import type { FileSystemFile, FileSystemPath, FileSystemQueryEntry, FileSystemReadResult, FileSystemWriteResult, LLMContent, Outcome, PersistentBackend } from "@breadboard-ai/types";
export { PersistentFile };
declare class PersistentFile implements FileSystemFile {
    readonly graphUrl: string;
    readonly path: FileSystemPath;
    readonly backend: PersistentBackend;
    constructor(graphUrl: string, path: FileSystemPath, backend: PersistentBackend);
    read(inflate: boolean, start?: number): Promise<FileSystemReadResult>;
    append(data: LLMContent[], done: boolean, receipt?: boolean): Promise<FileSystemWriteResult>;
    copy(): Outcome<FileSystemFile>;
    queryEntry(_path: FileSystemPath): FileSystemQueryEntry;
    delete(): Promise<FileSystemWriteResult>;
    data: LLMContent[];
}
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