import 'reflect-metadata';
/**
 * JWT Module Configuration
 */
export interface JWTModuleConfig {
    /** JWT secret (or env var name to read from) */
    secret?: string;
    /** Environment variable to read secret from */
    secretEnvVar?: string;
    /** Token expiration time (e.g., '24h', '7d') */
    expiresIn?: string;
    /** JWT audience */
    audience?: string;
    /** JWT issuer */
    issuer?: string;
}
/**
 * JWT Module - Enable JWT authentication in your MCP server
 *
 * Import this module to indicate your server uses JWT authentication.
 * Then use @UseGuards(JWTGuard) on your tools to protect them.
 *
 * @example
 * ```typescript
 * import { createServer, JWTModule } from 'nitrostack';
 *
 * const server = createServer({ ... });
 *
 * // Enable JWT authentication
 * server.use(JWTModule.forRoot({
 *   secretEnvVar: 'JWT_SECRET',
 *   expiresIn: '24h',
 * }));
 * ```
 */
export declare class JWTModule {
    private static config;
    /**
     * Configure JWT module for the application
     */
    static forRoot(config: JWTModuleConfig): JWTModuleConfig;
    /**
     * Get current JWT configuration
     */
    static getConfig(): JWTModuleConfig;
    /**
     * Get JWT secret from config or environment
     */
    static getSecret(): string | null;
}
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