/**
 * Token Delivery Handler
 *
 * Handles response interception to deliver tokens via Cookies or JSON.
 */
import { NAuthConfig, NAuthLogger } from '../index';
import { NAuthRequest, NAuthResponse } from '../platform/interfaces';
export declare class TokenDeliveryHandler {
    private config;
    private logger?;
    constructor(config: NAuthConfig, logger?: NAuthLogger | undefined);
    /**
     * Type guard for detecting an auth response payload.
     *
     * We intentionally validate types at runtime because the handler receives `unknown`
     * response bodies from framework adapters.
     */
    private isAuthResponseBody;
    /**
     * Process the response body.
     * If it contains tokens, handle delivery and return sanitized body.
     * If not, return original body.
     */
    handleResponse(req: NAuthRequest, res: NAuthResponse, body: unknown): Promise<unknown>;
    private resolveDeliveryMode;
    private setTokenCookies;
    private parseExpiry;
}
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