import { MultiServerTokenStorageStrategy } from "./MultiServerTokenStorageStrategy.js";
export declare class MultiServerFileStorageStrategy extends MultiServerTokenStorageStrategy {
    readonly filePath: string;
    constructor(filename?: string, dir?: string);
    private _readFile;
    private _writeFile;
    getAccessToken(): string | null;
    setAccessToken(token: string | null): void;
    getRefreshToken(): string | null;
    setRefreshToken(token: string | null): void;
    clear(): void;
    getServers(): string[];
    exportAll(): Record<string, {
        accessToken?: string | null;
        refreshToken?: string | null;
    }>;
}