import type { Hex } from '@metamask/utils';
/**
 * Generates Infura RPC URLs for common EVM networks keyed by hex chain ID.
 *
 * @param options - The options for generating Infura RPC URLs
 * @param options.infuraApiKey - The Infura API key
 * @param options.chainIds - Optional hex chain IDs to filter the output
 * @returns A map of hex chain IDs to Infura RPC URLs
 */
export declare const getInfuraRpcUrls: ({ infuraApiKey, chainIds, }: {
    infuraApiKey: string;
    chainIds?: Hex[];
}) => Record<Hex, string>;
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