import type { OutputEvent } from './types/session-types.js';
export type { LedgerRecord, LedgerPayload } from './session-ledger-project.js';
export { projectOutputEvent } from './session-ledger-project.js';
export { ledgerExists, readLedger, tailLedger } from './session-ledger-reader.js';
export declare class SessionLedgerWriter {
    private readonly sessionId;
    private readonly ledgerPath;
    private stream;
    private errored;
    private closed;
    private streamReady;
    private pendingLines;
    private readyPromise;
    private readyResolve;
    constructor(sessionId: string);
    get active(): boolean;
    record(payload: import('./session-ledger-project.js').LedgerPayload): void;
    recordEvent(event: OutputEvent): void;
    recordUser(text: string): void;
    private _openStream;
    private _writeLine;
    close(reason?: string): Promise<void>;
}