import { Middleware } from 'koa';
import type { Logger } from '.';
import { KobpServiceContext } from '..';
import { Tracer } from './tracer';
export interface PrintContent {
    requestId: string;
    user: any;
    ip: string[];
    path: string;
    version: string;
    platform: string;
    app: string;
    method: string;
    statusCode: string | number;
    message?: string;
    error?: string;
    verdict: 'OK' | 'ER' | 'PG';
}
export declare type PrintFn = (content: PrintContent) => void;
export declare class Loggy extends Tracer implements Logger {
    static format: 'JSN' | 'TXT';
    static customPrintLn?: PrintFn;
    private _printLn;
    constructor(ctx: KobpServiceContext, printFn?: PrintFn);
    /**
     * Override the print function
     */
    setPrintFn(printLn: PrintFn): void;
    success(...messageParts: any[]): void;
    failed(message: string, error?: string | Error): void;
    log(...messageParts: any[]): void;
    error(message: string, error?: string | Error): void;
    private _print;
    static log(...messageParts: any[]): void;
    static error(message: string, error?: string | Error): void;
    static current(): Loggy;
    /**
     * the dirty way to prematurly create the Loggy instance manually via middleware
     * so that the instance is being ready before the RequestContext is ready.
     */
    static autoCreate(attachToContextKey: string): Middleware;
}