import { AnyChain, Asset, AssetAmount } from '@galacticcouncil/xc-core';
/**
 * Calculate maximum allowed amount of asset to send from source to
 * destination chain.
 *
 * @param balance - source chain asset balance
 * @param fee - source chain transfer fee
 * @param min - source chain minimum
 * @param ed - source chain existential deposit (opt)
 * @returns - maximum allowed amount of tokens to send or zero in
 * case of not enough funds
 */
export declare function calculateMax(balance: AssetAmount, fee: AssetAmount, min: AssetAmount, ed?: AssetAmount): AssetAmount;
/**
 * Calculate minimum required amount of asset to send from source to
 * destination chain.
 *
 * @param balance - destination chain asset balance
 * @param fee - destination chain transfer fee
 * @param min - destination chain minimum
 * @param ed - destination chain existential deposit (opt)
 * @returns - minimum required amount of tokens to send or zero in
 * case of no available funds
 */
export declare function calculateMin(balance: AssetAmount, fee: AssetAmount, min: AssetAmount, ed?: AssetAmount): AssetAmount;
/**
 * Return h160 derivated address in case of Evm parachain
 *
 * @param address - h160 or ss58 address format
 * @param chain - transfer chain ctx
 * @returns - derivated address if evm resolver defined, fallback to default
 */
export declare function formatEvmAddress(address: string, chain: AnyChain): Promise<string>;
/**
 * Format amount if defined
 *
 * @param decimals - fee asset decimals
 * @param amount - fee amount
 * @returns formatted amount or 0
 */
export declare function formatAmount(decimals: number, amount?: number): bigint;
/**
 * Resolve decimals for an asset on a given chain, falling back to the chain
 * native currency decimals when the asset has no chain-specific override.
 *
 * @param chain - chain the asset is read on
 * @param asset - asset to resolve decimals for
 * @returns asset decimals
 */
export declare function getDecimals(chain: AnyChain, asset: Asset): Promise<number>;