import { NestInterceptor, ExecutionContext, CallHandler } from '@nestjs/common';
import { Observable } from 'rxjs';
export declare class ApiLogInterceptor implements NestInterceptor {
    private readonly logger;
    private readonly logDir;
    constructor();
    intercept(context: ExecutionContext, next: CallHandler): Observable<unknown>;
    private getDateStr;
    private getTimeStr;
    private writeLog;
    private formatRequest;
    private formatError;
    private safeStringify;
}