/**
 * Format bytes to human readable format
 */
export declare function formatBytes(bytes: number): string;
/**
 * Format time in seconds to human readable format
 */
export declare function formatTime(seconds: number): string;
export declare interface ProgressOptions {
  total?: number
  width?: number
  showPercentage?: boolean
  showSpeed?: boolean
  showETA?: boolean
  showBytes?: boolean
}
export declare interface ProgressState {
  current: number
  total: number
  startTime: number
  lastUpdate: number
  speed: number
  eta: number
}
export declare class ProgressBar {
  private state: ProgressState;
  private options: Required<ProgressOptions>;
  private lastLine: any;
  constructor(total?: any, options?: ProgressOptions);
  update(current: number, total?: number): void;
  complete(): void;
  private render(): void;
}
/**
 * Simple spinner for indeterminate progress
 */
export declare class Spinner {
  private frames: any;
  private interval: Timer | null;
  private currentFrame: any;
  private message: any;
  start(message?: any): void;
  stop(finalMessage?: string): void;
  update(message: string): void;
}
/**
 * Multi-line progress display for multiple concurrent operations
 */
export declare class MultiProgress {
  private bars: Map<string, ProgressBar>;
  private lines: string[];
  private isActive: any;
  addBar(id: string, total?: any, options?: ProgressOptions): ProgressBar;
  removeBar(id: string): void;
  private render(): void;
  private getBarString(_bar: ProgressBar): string;
  start(): void;
  stop(): void;
}