import type { Context, Middleware, Next } from '../types.js';
export interface SessionStore {
    get(id: string): Promise<Record<string, unknown> | null>;
    set(id: string, data: Record<string, unknown>, maxAge: number): Promise<void>;
    destroy(id: string): Promise<void>;
}
export interface SessionOptions {
    cookieName?: string;
    maxAge?: number;
    store?: SessionStore;
}
export declare class Session {
    private data;
    private _id;
    private _modified;
    constructor(id: string, data?: Record<string, unknown>);
    get id(): string;
    get(key: string): unknown;
    set(key: string, value: unknown): void;
    has(key: string): boolean;
    delete(key: string): void;
    flash(key: string, value: unknown): void;
    getFlash(key: string): unknown;
    all(): Record<string, unknown>;
    clear(): void;
    get modified(): boolean;
    serialize(): Record<string, unknown>;
}
export declare class MemorySessionStore implements SessionStore {
    private sessions;
    get(id: string): Promise<Record<string, unknown> | null>;
    set(id: string, data: Record<string, unknown>, maxAge: number): Promise<void>;
    destroy(id: string): Promise<void>;
}
export declare class SessionMiddleware implements Middleware {
    private store;
    private cookieName;
    private maxAge;
    constructor(options?: SessionOptions);
    handle(ctx: Context, next: Next): Promise<void>;
    private generateId;
}
export declare function session(options?: SessionOptions): SessionMiddleware;
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