import BigNumber from "bignumber.js";
import { Signer, Contract } from "ethers-6";
import { IChainInfo, ICrossRule, IToken } from "./types";
export declare const approveAndAllowanceCheck: (params: {
    contractInstance: Contract;
    account: string;
    contractAddress: string;
    targetValue: BigInt;
}) => Promise<void>;
export declare function equalsIgnoreCase(value1: string, value2: string): boolean;
export declare function getContract(params: {
    contractAddress: string;
    localChainID?: number | string;
    ABI?: any[];
    signer?: Signer;
}): Contract | undefined;
export declare function isEthTokenAddress(tokenAddress: string, chainInfo: IChainInfo, tokens: IToken[]): boolean;
export declare function getRealTransferValue(selectMakerConfig: ICrossRule, transferValue: number | string, fromTokenDecimals: number): BigInt;
export declare function sleep(ms: number): Promise<unknown>;
export declare function getExchangeToUsdRate(sourceCurrency?: string): Promise<BigNumber>;
export declare function exchangeToUsd(value?: number | BigNumber, sourceCurrency?: string): Promise<BigNumber>;
export declare function getTokenConvertUsd(currency: string): Promise<number>;
export declare const throwNewError: (message: string, error?: any) => never;
export declare const getContractAddressByType: (targetChainContracts: {
    [k: string]: string;
}, value: string) => string;
export declare const formatDate: (date: Date | string, isShort?: boolean) => string;
export declare const getActiveSigner: <T>() => T;
export declare const getActiveAccount: () => Promise<string>;
export declare const getActiveChainId: () => Promise<string | bigint>;
export declare const changeActiveSignerType: (fromChainID: string | number) => void;
export declare const isLoopring: (chainId: string | number) => boolean;
export declare const isStarknet: (chainId: string | number) => boolean;
//# sourceMappingURL=utils.d.ts.map