import Big, { BigSource } from "big.js";
import { Bitcoin, Currency, ExchangeRate, MonetaryAmount } from "@interlay/monetary-js";
import { u32 } from "@polkadot/types";
import { InterbtcPrimitivesOracleKey } from "@polkadot/types/lookup";
import { GovernanceCurrency, CurrencyExt, ForeignAsset, CollateralCurrencyExt, LendToken, CurrencyIdentifier, StandardLpToken, StableLpToken } from "../types/currency";
import { ApiPromise } from "@polkadot/api";
import { InterbtcPrimitivesCurrencyId, InterbtcPrimitivesTokenSymbol } from "../interfaces";
export declare const ATOMIC_UNIT = 0;
export declare function computeLazyDistribution(stake: Big, perToken: Big, tally: Big): Big;
export declare function atomicToBaseAmount(atomicAmount: BigSource, currency: Currency): Big;
export declare function newMonetaryAmount<CurrencyT extends CurrencyExt>(amount: BigSource, currency: CurrencyT, base?: boolean): MonetaryAmount<CurrencyT>;
export declare function newCollateralBTCExchangeRate(rate: Big, counterCurrency: Currency, useBaseUnits?: boolean): ExchangeRate<Bitcoin, Currency>;
export declare function createFeeEstimationOracleKey(api: ApiPromise): InterbtcPrimitivesOracleKey;
export declare function createExchangeRateOracleKey(api: ApiPromise, collateralCurrency: CurrencyExt): InterbtcPrimitivesOracleKey;
export declare function toVoting(governanceCurrency: GovernanceCurrency): Currency;
/**
 * Get all collateral currencies (tokens as well as foreign assets).
 *
 * Will return all collateral currencies for which the parachain has a system collateral ceiling value
 * greater than zero.
 * @param api ApiPromise instance to query the parachain
 * @returns An array of collateral currencies.
 */
export declare function getCollateralCurrencies(api: ApiPromise): Promise<Array<CollateralCurrencyExt>>;
export declare function isForeignAsset(currencyExt: CurrencyExt): currencyExt is ForeignAsset;
export declare function isLendToken(currencyExt: CurrencyExt): currencyExt is LendToken;
export declare function isStandardLpToken(currencyExt: CurrencyExt): currencyExt is StandardLpToken;
export declare function isStableLpToken(currencyExt: CurrencyExt): currencyExt is StableLpToken;
export declare function isCurrency(currencyExt: CurrencyExt): currencyExt is Currency;
export declare function isCurrencyEqual(currency: CurrencyExt, otherCurrency: CurrencyExt): boolean;
export declare function getCurrencyIdentifier(currency: CurrencyExt): CurrencyIdentifier;
export declare function currencyIdToMonetaryCurrency(api: ApiPromise, currencyId: InterbtcPrimitivesCurrencyId): Promise<CurrencyExt>;
/**
 * A method that will only try to find a hard-coded currencies.
 * Only for use when we are certain the currency is not a foreign asset.
 * @param tokenSymbol the InterbtcPrimitivesTokenSymbol to look up
 */
export declare function tokenSymbolToCurrency(tokenSymbol: InterbtcPrimitivesTokenSymbol): Currency;
/**
 * Get foreign asset by its id.
 * @param id The id of the foreign asset.
 * @returns The foreign asset.
 */
export declare function getForeignAssetFromId(api: ApiPromise, id: number | u32): Promise<ForeignAsset>;
/**
 * Get underlying currency of lend token id,
 *
 * @param lendTokenId Currency id of the lend token to get currency from
 * @returns Underlying CurrencyExt for provided lend token
 */
export declare function getUnderlyingCurrencyFromLendTokenId(api: ApiPromise, lendTokenId: InterbtcPrimitivesCurrencyId): Promise<CurrencyExt>;
/**
 * Get standard LP token currency lib type from currencyId primitive.
 *
 * @param currencyId Id of standard LP token.
 * @returns {StandardLpToken} Lib type currency object for standard LP token.
 */
export declare function getStandardLpTokenFromCurrencyId(api: ApiPromise, currencyId: InterbtcPrimitivesCurrencyId): Promise<StandardLpToken>;
/**
 * Get stable LP token currency lib type from currencyId primitive.
 *
 * @param currencyId Id of stable LP token.
 * @returns {StableLpToken} Lib type currency object for stable LP token.
 */
export declare function getStableLpTokenFromCurrencyId(api: ApiPromise, currencyId: InterbtcPrimitivesCurrencyId): Promise<StableLpToken>;