import BigNumber from 'bignumber.js';
export declare enum ChainId {
    BSC = 56,
    POLYGON = 137,
    FANTOM = 250
}
export type ChainIdMap<T> = Record<ChainId, T>;
export declare const BIG_ZERO: BigNumber;
export declare const BIG_18D: BigNumber;
export declare const brgxUrl = "https://bridges.exchange";
export declare const tokenListUrl = "https://token-list.bridges.exchange/bridges-multichain-tokenlist.json";
export declare const transactionUrl: string;
export declare const EMPTY_LIST: any[];
export declare const EMPTY_OBJECT: {};
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