import { type SessionStorage } from '@remix-run/node';
type SessionStorageConfig = {
    storage?: never;
    cookieName?: string;
} | {
    storage: SessionStorage;
    cookieName: string;
};
export declare const errors: {
    readonly configureSessionStorage: string;
    readonly configAlreadyCalled: "SessionStorage has already been configured.";
};
export declare class SessionStorageManager {
    /**
     * The default cookie name used for storing the session id.
     */
    private storage;
    private configPromise;
    private cookieName;
    configure(config?: SessionStorageConfig): Promise<SessionStorage<import("@remix-run/node").SessionData, import("@remix-run/node").SessionData> & {
        cookieName: string;
    }>;
    /**
     * Returns the configured SessionStorage instance.
     * If no configuration has been set, this will throw an error.
     * @returns The configured SessionStorage instance, and the cookie name.
     */
    getSessionStorage(): Promise<SessionStorage & {
        cookieName: string;
    }>;
    private createSessionStorage;
    private getDefaultCookieOptions;
}
/**
 * Returns the configured SessionStorage instance.
 * If no configuration has been set, this will return a new instance of
 * SessionStorage using the default cookie settings.
 * @param config - The configuration options for the SessionStorage instance.
 * @returns The configured SessionStorage instance.
 */
export declare function configureSessionStorage(config?: SessionStorageConfig): Promise<SessionStorage<import("@remix-run/node").SessionData, import("@remix-run/node").SessionData> & {
    cookieName: string;
}>;
/**
 * Returns the configured SessionStorage instance.
 * If no configuration has been set, this will throw an error.
 * @returns The configured SessionStorage instance, and the cookie name.
 */
export declare function getSessionStorage(): Promise<SessionStorage<import("@remix-run/node").SessionData, import("@remix-run/node").SessionData> & {
    cookieName: string;
}>;
export {};