/**
 * Persistence backend for {@link Session}.
 */
export interface SessionStore {
    /**
     * @param savePath - File driver root path (unused for non-file drivers).
     * @param sessionName - Logical session cookie/name prefix segment.
     */
    open(savePath: string, sessionName: string): Promise<void>;
    /**
     * Releases resources for this store handle.
     */
    close(): Promise<void>;
    /**
     * @param sessionId - Session identifier.
     * @returns Serialized session payload (often JSON); empty string when missing.
     */
    read(sessionId: string): Promise<string>;
    /**
     * @param sessionId - Session identifier.
     * @param data - Serialized payload to persist.
     */
    write(sessionId: string, data: string): Promise<void>;
    /**
     * @param sessionId - Session identifier.
     */
    destroy(sessionId: string): Promise<void>;
    /**
     * @param maxLifetime - Oldest acceptable last-activity age in seconds.
     * @returns Number of sessions removed.
     */
    gc(maxLifetime: number): Promise<number>;
}
//# sourceMappingURL=SessionStore.d.ts.map