/**
 * Simple CLI Progress Spinner
 * Shows animated progress during long-running operations
 */
export declare class ProgressSpinner {
    private interval;
    private frame;
    private message;
    private subMessage;
    private isSpinning;
    private isFirstRender;
    private readonly frames;
    start(message: string): void;
    updateMessage(message: string, subMessage?: string): void;
    updateSubMessage(subMessage: string): void;
    stop(): void;
    success(message: string): void;
    error(message: string): void;
    private render;
    private clearLines;
}
export declare const spinner: ProgressSpinner;
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