import type { CookieSerializeOptions } from './cookie-es-main/types.js';
export type FlashOptions = {
    clearArray: boolean;
    clearOnNavigate: boolean;
    clearAfterMs: number;
    flashCookieOptions: CookieSerializeOptions;
};
export declare const defaultOptions: {
    clearArray: false;
    clearOnNavigate: true;
    clearAfterMs: number;
    flashCookieOptions: {
        path: string;
        maxAge: number;
        httpOnly: false;
        sameSite: "strict";
    };
};
export declare function mergeOptions(parentOptions: FlashOptions, options: Partial<FlashOptions> | undefined): FlashOptions;