export declare type LoggerExtender = (name: string, color?: string) => Logger;
export interface Logger {
    level: string;
    readonly native: any;
    extend(name: string, color?: string): Logger;
    log(level: string, ...args: any[]): any;
    trace(...args: any[]): any;
    debug(...args: any[]): any;
    info(...args: any[]): any;
    warn(...args: any[]): any;
    error(...args: any[]): any;
    fatal(...args: any[]): any;
    isLevelEnabled(level: string): boolean;
    isTraceEnabled(): any;
    isDebugEnabled(): any;
    isInfoEnabled(): any;
    isWarnEnabled(): any;
    isErrorEnabled(): any;
    isFatalEnabled(): any;
}