/**
 * `1062.11` → `1,062.11`. The fraction is passed through untouched: rounding a
 * balance would show the user a number they can't withdraw.
 */
export declare function groupThousands(amount: string): string;
/**
 * A rate as its percentage: a fraction is padded to two decimals (`0.042` →
 * `4.20%`), a whole percent stays bare (`0.01` → `1%`). A rate too small to
 * round to a hundredth reads `<0.01%`, since the row beside it still charges a
 * real amount.
 */
export declare function formatPercent(rate: number): string;
/**
 * The fraction a token amount is shown to, matching web's `ASSET_DECIMALS` (see
 * the checkout's `InputAmount/utils.ts`) so the two flows read the same.
 */
export declare const ASSET_DECIMALS = 5;
/**
 * `99.780000` → `99.78`, capped at {@link ASSET_DECIMALS}.
 *
 * Truncated rather than rounded: a figure the recipient won't actually get is
 * worse than one digit less of it. Trailing zeros go, so a round amount reads as
 * one.
 */
export declare function formatTokenAmount(amount: string, maxDecimals?: number): string;
/** `99.94` → `$99.94`. Two decimals, as every USD figure in the design is. */
export declare function formatUsd(value: number): string;
/** `99.94, 'AUD'` → `A$99.94`. Fiat amounts are not always dollars. */
export declare function formatFiat(value: number, currency: string): string;
/**
 * `2, 'USD'` → `$2`, `2.5, 'USD'` → `$2.50`.
 *
 * For the deposit limit disclaimers only: a threshold reads the way the rail
 * states it ("the minimum for this purchase is 2 USD"), and cents the user
 * never has to think about are noise. Amounts they pay keep {@link formatFiat}.
 */
export declare function formatFiatWhole(value: number, currency: string): string;
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