/**
 * 链配置
 * ⚠️ 所有链相关的常量必须在此定义，禁止在代码中硬编码 chainId
 */
export declare const CHAINS: {
    readonly BSC: {
        readonly chainId: 56;
        readonly name: "BSC";
        readonly nativeCurrency: "BNB";
        readonly wrappedNative: "WBNB";
        readonly rpcUrls: {
            readonly default: "https://bsc-dataseed.binance.org";
            readonly backup: "https://bsc-dataseed1.binance.org";
            readonly backup2: "https://bsc-dataseed2.binance.org";
        };
        readonly blockTime: 3000;
        readonly explorer: "https://bscscan.com";
        /** 交易确认超时时间 (ms) */
        readonly confirmationTimeout: 60000;
    };
    readonly XLAYER: {
        readonly chainId: 196;
        readonly name: "X Layer";
        readonly nativeCurrency: "OKB";
        readonly wrappedNative: "WOKB";
        readonly rpcUrls: {
            readonly default: "https://xlayerrpc.okx.com";
            readonly backup: "https://rpc.xlayer.tech";
        };
        readonly blockTime: 2000;
        readonly explorer: "https://www.okx.com/explorer/xlayer";
        readonly confirmationTimeout: 120000;
    };
    readonly MONAD: {
        readonly chainId: 143;
        readonly name: "Monad";
        readonly nativeCurrency: "MON";
        readonly wrappedNative: "WMON";
        readonly rpcUrls: {
            readonly default: "https://rpc-mainnet.monadinfra.com";
        };
        readonly blockTime: 1000;
        readonly explorer: "https://monad.xyz/explorer";
        readonly confirmationTimeout: 60000;
    };
    readonly BASE: {
        readonly chainId: 8453;
        readonly name: "Base";
        readonly nativeCurrency: "ETH";
        readonly wrappedNative: "WETH";
        readonly rpcUrls: {
            readonly default: "https://mainnet.base.org";
        };
        readonly blockTime: 2000;
        readonly explorer: "https://basescan.org";
        readonly confirmationTimeout: 60000;
    };
    readonly ARBITRUM_ONE: {
        readonly chainId: 42161;
        readonly name: "Arbitrum One";
        readonly nativeCurrency: "ETH";
        readonly wrappedNative: "WETH";
        readonly rpcUrls: {
            readonly default: "https://arb1.arbitrum.io/rpc";
        };
        readonly blockTime: 250;
        readonly explorer: "https://arbiscan.io";
        readonly confirmationTimeout: 60000;
    };
    readonly MORPH: {
        readonly chainId: 2818;
        readonly name: "Morph";
        readonly nativeCurrency: "ETH";
        readonly wrappedNative: "WETH";
        readonly rpcUrls: {
            readonly default: "https://rpc.morphl2.io";
        };
        readonly blockTime: 2000;
        readonly explorer: "https://explorer.morphl2.io";
        readonly confirmationTimeout: 60000;
    };
    readonly ETHEREUM: {
        readonly chainId: 1;
        readonly name: "Ethereum";
        readonly nativeCurrency: "ETH";
        readonly wrappedNative: "WETH";
        readonly rpcUrls: {
            readonly default: "https://eth.llamarpc.com";
            readonly backup: "https://rpc.ankr.com/eth";
        };
        readonly blockTime: 12000;
        readonly explorer: "https://etherscan.io";
        readonly confirmationTimeout: 180000;
    };
    readonly ENI: {
        readonly chainId: 173;
        readonly name: "ENI";
        readonly nativeCurrency: "EGAS";
        readonly wrappedNative: "WEGAS";
        readonly rpcUrls: {
            readonly default: "https://rpc.eniac.network";
        };
        readonly blockTime: 1080;
        readonly explorer: "https://scan.eniac.network";
        readonly confirmationTimeout: 60000;
    };
};
export declare const CHAIN_ID_MAP: Record<string, number>;
export type ChainKey = keyof typeof CHAINS;
export type ChainConfig = typeof CHAINS[ChainKey];
/**
 * 根据 chainId 获取链配置
 */
export declare function getChainById(chainId: number): ChainConfig | undefined;
/**
 * 根据 chainId 获取链名称
 */
export declare function getChainName(chainId: number): string;
/**
 * 根据 chainId 获取默认 RPC URL
 */
export declare function getDefaultRpcUrl(chainId: number): string | undefined;
/**
 * 判断是否为已知链
 */
export declare function isKnownChain(chainId: number): boolean;
/**
 * 判断是否为 BSC 链
 */
export declare function isBscChain(chainId: number): boolean;
/**
 * 判断是否为 XLayer 链
 */
export declare function isXLayerChain(chainId: number): boolean;
/**
 * 判断是否为 Monad 链
 */
export declare function isMonadChain(chainId: number): boolean;
/**
 * 判断是否为 ENI 链
 */
export declare function isEniChain(chainId: number): boolean;
/**
 * 获取确认超时时间
 */
export declare function getConfirmationTimeout(chainId: number): number;