export interface Logger {
    trace: (message: any) => void;
    debug: (message: any) => void;
    info: (message: any) => void;
    warn: (message: any) => void;
    error: (message: any) => void;
    fatal: (message: any) => void;
}
export declare const LOG_CONFIG_LEVELS: readonly ["trace", "debug", "info", "warn", "error", "fatal", "none"];
export type LogConfigLevel = (typeof LOG_CONFIG_LEVELS)[number];
export type LogEventLevel = "trace" | "debug" | "info" | "warn" | "error" | "fatal";
export type LogEvent = {
    level: LogEventLevel;
    message: any;
};
export type Printer = (data: any) => void;
export declare class StandardLogger implements Logger {
    private readonly printer;
    private logConfigLevel;
    constructor(options?: {
        logConfigLevel?: LogConfigLevel;
        printer?: Printer;
    });
    trace(message: any): void;
    debug(message: any): void;
    info(message: any): void;
    warn(message: any): void;
    error(message: any): void;
    fatal(message: any): void;
    private log;
    private isPrintable;
    private format;
    private print;
    setLogConfigLevel(logConfigLevel: LogConfigLevel): void;
}
export declare const logger: StandardLogger;