import type { FunLogger } from './funLogger';
/**
 * The amount a withdrawal quote should price: the typed amount less a flat,
 * venue-charged fee, clamped at 0.
 *
 * - The deduction lands on the quote input rather than the typed amount, so the
 *   account is debited what the user typed and the remainder is what moves.
 * - `dnum` fixed-point, not float: `10.1 - 3` is `7.100000000000001` in binary
 *   floating point, and a quote key would refetch on that noise alone.
 */
export declare function deductFlatFee(inputAmount: string, feeTokenAmount: number): string;
/**
 * A share of a balance, for the percentage shortcuts on an amount field.
 *
 * - Always rounds down: at 100% a rounded-up share would exceed the balance,
 *   and below it the extra digit is dust the transfer can't carry anyway.
 * - `decimals` is the token's precision. Until it's known, two digits past
 *   whatever the balance carries is what dividing by 100 needs.
 */
export declare function percentOfAmount(balance: string, percent: number, decimals?: number): string;
/** Cents: what a USD figure is written to when it's the converted side. */
export declare const USD_DECIMALS = 2;
/**
 * The token amount a USD figure buys, for a field typed in dollars.
 *
 * - Rounds down: a rounded-up amount can exceed the balance being spent from.
 * - A price of `0` is "unknown", so it yields `'0'` rather than dividing by it.
 */
export declare function usdToTokenAmount(usd: string, usdPrice: number, decimals?: number): string;
/**
 * What a token amount is worth, in cents. Rounds down rather than up to a cent
 * nobody has; `0` is "unknown", not free.
 */
export declare function tokenAmountToUsd(amount: string, usdPrice: number): string;
/**
 * Resolve the integrator's `withdrawalSourceTokenBalance` callback to a numeric
 * string. Generic over the callback params so each platform keeps its own shape
 * (web asks by `sourceAsset`, React Native by `sourceToken`).
 *
 * - `undefined` means no callback was supplied — distinct from a callback
 *   returning `0` ("nothing withdrawable").
 * - A throw or an unusable value yields `'0'`, never `undefined`: a broken
 *   callback must not read as "unknown" and let the form fall through to some
 *   other balance source.
 */
export declare function resolveWithdrawalSourceTokenBalance<TParams>(fn: ((params: TParams) => string | number) | undefined, params: TParams, logger: FunLogger): string | undefined;
//# sourceMappingURL=withdrawal.d.ts.map