import BigNumber from 'bignumber.js';
import { PriceToken } from '../../../../../../common/tokens';
import { EvmBlockchainName } from '../../../../../../core/blockchain/models/blockchain-name';
export declare class EddyBridgeContractService {
    static getPlatformFee(): Promise<number>;
    /**
     * Eddy takes gasFee in source chain native currency
     * @param toToken target chain token
     */
    static getGasFeeInDestChain(fromToken: PriceToken<EvmBlockchainName>, toToken: PriceToken<EvmBlockchainName>): Promise<BigNumber>;
    /**
     * @returns eddy static slippage
     */
    static getEddySlipage(): Promise<number>;
}