/**
 * Convert a bigint to a string, scaled down to the specified decimals.
 */
export declare function balanceToString(value: bigint, coinDecimals: number): string;
/**
 * Convert a string to a bigint, scaled up to the specified decimals.
 */
export declare function stringToBalance(value: string, coinDecimals: number): bigint;
/**
 * Format a number into a readable string.
 *
 * - 'standard' format:
 *   - If the number is < 1000, show 2 decimals (e.g. '123.45')
 *   - If the number is >= 1000, don't show any decimals (e.g. '1,234')
 *
 * - 'compact' format:
 *   - If the number is < 1 million, use 'standard' format
 *   - If the number is >= 1 million, use word notation (e.g. '540.23M', '20.05B')
 */
export declare function formatNumber(num: number, format?: "standard" | "compact"): string;
/**
 * Format a bigint into a readable string, scaled down to the specified decimals.
 *
 * - 'standard' format:
 *   - If the number is < 1000, show 2 decimals (e.g. '123.45')
 *   - If the number is >= 1000, don't show any decimals (e.g. '1,234')
 *
 * - 'compact' format:
 *   - If the number is < 1 million, use 'standard' format
 *   - If the number is >= 1 million, use word notation (e.g. '540.23M', '20.05B')
 */
export declare function formatBalance(big: bigint, decimals: number, format?: "standard" | "compact"): string;