/** 日志级别 */
export type LoggerLevel = 'OFF' | 'ERROR' | 'WARN' | 'INFO' | 'DEBUG' | 'TRACE';
export declare const LOGGER_LEVELS: LoggerLevel[];
/** 默认日志级别 */
export declare const DEFAULT_LOGGER_LEVEL = "INFO";
/** 日志 */
export interface Logger {
    level: LoggerLevel;
    isTraceEnabled(): boolean;
    isDebugEnabled(): boolean;
    isInfoEnabled(): boolean;
    isWarnEnabled(): boolean;
    isErrorEnabled(): boolean;
    trace(message: any, ...args: any[]): void;
    debug(message: any, ...args: any[]): void;
    info(message: any, ...args: any[]): void;
    warn(message: any, ...args: any[]): void;
    error(message: any, ...args: any[]): void;
}
/** 日志构造器 */
export type LoggerConstructor = (level: LoggerLevel) => Logger;