import { CallHandler, ExecutionContext, NestInterceptor } from '@nestjs/common';
import { Counter, Histogram } from 'prom-client';
import { Observable } from 'rxjs';
import { LogService } from '../../modules';
export declare class GatewayMetricInterceptor implements NestInterceptor {
    private logService;
    private gatewayDurationMetric;
    private gatewayTotalMetric;
    constructor(logService: LogService, gatewayDurationMetric: Histogram<string>, gatewayTotalMetric: Counter<string>);
    intercept(context: ExecutionContext, next: CallHandler): Observable<any>;
}
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