import { CallHandler, ExecutionContext, NestInterceptor } from '@nestjs/common';
import { Request } from 'express';
import { Observable } from 'rxjs';
import { WithSpanContext } from './tracing.helper';
export declare type TraceRequest = Request & WithSpanContext;
export declare class TracingInterceptor implements NestInterceptor {
    intercept(context: ExecutionContext, next: CallHandler<any>): Observable<any> | Promise<Observable<any>>;
}