import type { Request, Response, NextFunction } from 'express';
export interface AuthConfig {
    apiKeys: string[];
    sessionIsolation?: boolean;
}
export interface AuthSession {
    apiKey: string;
    userId: string;
    createdAt: number;
}
export declare function createAuthMiddleware(config: AuthConfig): (req: Request, res: Response, next: NextFunction) => void;
export declare function getActiveSessions(): AuthSession[];
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