import type { ChainMetadata } from './chainMetadataTypes.js';
export declare function tryNormalizeNumericChainId(chainId: string | number): number | null;
export declare function areChainIdsEqual(left: ChainMetadata['chainId'] | null | undefined, right: ChainMetadata['chainId'] | null | undefined): boolean;
export declare function getEffectiveDomainId(metadata: {
    chainId: ChainMetadata['chainId'];
    domainId?: ChainMetadata['domainId'] | null;
}): number | null;
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