import type { Options as BoxenOptions } from "boxen";
import figlet from "figlet";
export declare class Spinner {
    private text;
    private isRunning;
    private interval?;
    private currentCharIndex;
    private isTerminal;
    constructor(text: string);
    start(text?: string): Promise<Spinner>;
    update(text: string): Spinner;
    log(stream: NodeJS.WriteStream, message: string): Spinner;
    succeed(text?: string): Promise<void>;
    fail(text?: string): Promise<void>;
    info(text?: string): Promise<void>;
    warn(text?: string): Promise<void>;
    pause(): Promise<void>;
    stop(): Promise<void>;
    clear(): Promise<void>;
}
export declare function displayBox(message: string, title?: string, options?: BoxenOptions): Promise<void>;
export declare function displayBanner(text: string, font?: figlet.FontName): void;
export declare function success(message: string): void;
export declare function error(message: string | Error): void;
export declare function warning(message: string | Error): void;
export declare function info(message: string): void;
export declare function header(text: string): void;
export declare function keyValue(key: string, value: string | number | boolean): string;