/**
 * Data formatting utilities
 * Extracted from web-app for reusability across integrations
 */
/**
 * Format file size in bytes to human-readable format
 * @param bytes - File size in bytes
 * @param decimals - Number of decimal places (default: 1)
 * @returns Formatted file size string (e.g., "1.5 MB")
 */
export declare function formatFileSize(bytes: number, decimals?: number): string;
/**
 * Format date to human-readable format
 * @param date - Date object or ISO string
 * @param options - Intl.DateTimeFormat options
 * @returns Formatted date string
 */
export declare function formatDate(date: Date | string, options?: Intl.DateTimeFormatOptions): string;
/**
 * Format date to relative time (e.g., "2 hours ago")
 * @param date - Date object or ISO string
 * @returns Relative time string
 */
export declare function formatRelativeTime(date: Date | string): string;
/**
 * Truncate filename to specified length, preserving extension
 * @param filename - Full filename with extension
 * @param maxLength - Maximum length of truncated filename
 * @returns Truncated filename
 */
export declare function truncateFilename(filename: string, maxLength?: number): string;
/**
 * Truncate text to specified length
 * @param text - Text to truncate
 * @param maxLength - Maximum length
 * @param suffix - Suffix to append (default: "...")
 * @returns Truncated text
 */
export declare function truncateText(text: string, maxLength: number, suffix?: string): string;
/**
 * Format dimensions (width x height)
 * @param width - Width in pixels
 * @param height - Height in pixels
 * @returns Formatted dimensions string (e.g., "1920 × 1080")
 */
export declare function formatDimensions(width?: number, height?: number): string;
/**
 * Format number with thousands separator
 * @param num - Number to format
 * @returns Formatted number string
 */
export declare function formatNumber(num: number): string;
/**
 * Pluralize a word based on count
 * @param count - Number to check
 * @param singular - Singular form
 * @param plural - Plural form (optional, defaults to singular + 's')
 * @returns Pluralized string with count
 */
export declare function pluralize(count: number, singular: string, plural?: string): string;
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