interface Logger {
    error: (msg: string) => void;
    warn?: (msg: string) => void;
    info?: (msg: string) => void;
}
export declare class CustomError extends Error {
    statusCode?: number | undefined;
    details?: Record<string, unknown> | undefined;
    emoji: string;
    category?: string | undefined;
    defaultMsg?: string | undefined;
    static settings: {
        showEmoji: boolean;
        defaultCompact: boolean;
        colorize: boolean;
    };
    private static externalLogger;
    static config(options: Partial<typeof CustomError.settings>): void;
    static setLogger(loggerInstance: Logger, level?: "error" | "warn" | "info"): void;
    colorizeByStatusCode(str: string, statusCode?: number): string;
    constructor(message: any, statusCode?: number, details?: Record<string, unknown>);
    toJSON(): object;
    formatDetails(details: Record<string, any>, maxLen?: number): string;
    formattedMessage(compact?: boolean, showEmoji?: boolean, colorize?: boolean): string;
    log(compact?: boolean, showEmoji?: boolean, colorize?: boolean): void;
}
export {};