import type { CallHandler, ExecutionContext, NestInterceptor } from '@nestjs/common';
import { Observable } from '../_types/rxjs/dist/types/index.js';
import { ShutdownService } from '../services/shutdown.service.js';
/**
 * Interceptor that tracks requests for graceful shutdown.
 * Also rejects new requests during shutdown.
 */
export declare class RequestTrackingInterceptor implements NestInterceptor {
    private readonly shutdownService;
    constructor(shutdownService: ShutdownService);
    intercept(context: ExecutionContext, next: CallHandler): Observable<unknown>;
}
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