import JSBI from 'jsbi';
import { BigintIsh, ChainId, Rounding } from '../constants/constants';
import { Currency, Native, Token } from '../entities/currency';
import { Fraction } from './fraction';
declare abstract class AbstractCurrencyAmount extends Fraction {
    readonly currency: Currency;
    protected constructor(currency: Currency, amount: BigintIsh);
    abstract add(other: CurrencyAmount): CurrencyAmount;
    abstract subtract(other: CurrencyAmount): CurrencyAmount;
    wrapped(): TokenAmount;
    unwrapped(): CurrencyAmount;
    toSignificant(significantDigits?: number, format?: object, rounding?: Rounding): string;
    toFixed(decimalPlaces?: number, format?: object, rounding?: Rounding): string;
    toExact(format?: object): string;
    get raw(): JSBI;
}
export declare class NativeAmount extends AbstractCurrencyAmount {
    /**
     * Helper that calls the constructor with the ETHER currency
     * @param chainId
     * @param amount ether amount in wei
     */
    static native(chainId: ChainId, amount: BigintIsh): NativeAmount;
    static native(currency: Native, amount: BigintIsh): NativeAmount;
    protected constructor(currency: Currency, amount: BigintIsh);
    add(other: NativeAmount): NativeAmount;
    subtract(other: NativeAmount): NativeAmount;
}
export declare class TokenAmount extends AbstractCurrencyAmount {
    readonly token: Token;
    constructor(token: Token, amount: BigintIsh);
    add(other: TokenAmount): TokenAmount;
    subtract(other: TokenAmount): TokenAmount;
}
export declare type CurrencyAmount = NativeAmount | TokenAmount;
export declare function isCurrencyAmount(obj?: any): boolean;
export {};