/**
 * Number formatting utilities with thousand separators.
 * Supports multiple grouping styles: thousand (Western), lakh (Indian), wan (Chinese)
 */
import { ThousandStyle } from '@/types';
/**
 * Formats a numeric string with thousand separators based on the specified group style.
 *
 * @param value - The numeric string to format (e.g., "1234567")
 * @param separator - The separator character to use (e.g., ",")
 * @param groupStyle - The grouping style: 'none' (no separators), 'thousand' (1,234,567), 'lakh' (12,34,567), or 'wan' (123,4567)
 * @param enableLeadingZeros - Whether to preserve leading zeros
 * @param decimalSeparator - The decimal separator character (default: '.')
 * @returns The formatted string with separators
 *
 * @example
 * formatWithSeparators("1234567", ",", "thousand") // "1,234,567"
 * formatWithSeparators("1234567", ",", "lakh")     // "12,34,567"
 * formatWithSeparators("1234567", ",", "wan")      // "123,4567"
 * formatWithSeparators("1234.56", ",", "thousand", false, '.') // "1,234.56"
 * formatWithSeparators("1234,56", ",", "thousand", false, ',') // "1,234,56"
 */
export declare function formatWithSeparators(value: string, separator: string, groupStyle?: ThousandStyle, enableLeadingZeros?: boolean, decimalSeparator?: string): string;