import { ChainDefaults } from "../types";
export declare function isMainnetChain(chainId: string): boolean;
export declare function isOptimismChain(chainId: string): boolean;
export declare function isOpStackChain(chainId: string): boolean;
export declare function isArbitrumChain(chainId: string): boolean;
export declare function isScrollChain(chainId: string): boolean;
export declare function getChainDefaults(chainId: string): Readonly<ChainDefaults>;
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