import type { Session } from '../types/index.js';
import type { AuditListOptions, ConversationAuditEntry } from '../audit/types.js';
export declare class StaleWriteError extends Error {
    readonly sessionId: string;
    readonly expectedVersion: number;
    readonly actualVersion: number;
    constructor(sessionId: string, expectedVersion: number, actualVersion: number);
}
export interface SessionListWindow {
    from?: Date;
    to?: Date;
}
export interface SessionStore {
    get(id: string): Promise<Session | null>;
    save(session: Session): Promise<void>;
    delete(id: string): Promise<void>;
    list(userId?: string): Promise<Session[]>;
    listSessions?(window?: SessionListWindow, filter?: (session: Session) => boolean): Promise<Session[]>;
    cleanup?(maxAgeMs: number): Promise<number>;
    appendAuditEntry?(sessionId: string, entry: ConversationAuditEntry): Promise<void>;
    listAuditEntries?(sessionId: string, opts?: AuditListOptions): Promise<ConversationAuditEntry[]>;
}