export type LogLevel = 'verbose' | 'silent' | 'normal';
export declare class Logger {
    level: LogLevel;
    color: any;
    constructor(level?: LogLevel);
    debug(...msg: any[]): void;
    log(...msg: (string | number | boolean)[]): void;
    warn(...msg: (string | number | boolean)[]): void;
    error(...msg: any[]): void;
    errorStack(stack: any): void;
    write(d: string | Buffer): void;
    tick(): void;
}