import type { Journal } from "./types/index.js";
import type { ExecutionEventListener } from "../../types/execution-events.js";
import type { JournalMessage } from "../execution/types/messages.js";
/**
 * A file-based journal.
 *
 * @beta
 */
export declare class FileJournal implements Journal {
    private readonly _filePath;
    private readonly _executionEventListener?;
    constructor(_filePath: string, _executionEventListener?: ExecutionEventListener | undefined);
    record(message: JournalMessage): Promise<void>;
    read(): AsyncGenerator<JournalMessage>;
    private _appendJsonLine;
    private _log;
}
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