import { NestInterceptor, ExecutionContext, CallHandler } from '@nestjs/common';
import { Observable } from 'rxjs';
import { AppConfig } from '../app.config';
export declare class LoggingInterceptor implements NestInterceptor {
    private appConfig;
    private readonly _logger;
    constructor(appConfig: AppConfig);
    intercept(context: ExecutionContext, next: CallHandler): Observable<any>;
    private formatMessage;
}