export declare const queryMappingChainListItemByIdentifier: (chainListURL?: string) => Promise<Record<string, {
    name: string;
    chainId: number;
    identifier: `${string}/${string}`;
    rpc: string[];
    explorers: string[];
    parent: {
        type: "L2";
        chain: "mainnet" | "sepolia" | "sepolia-dev-0";
    };
}>>;
export declare const useMappingChainListItemByIdentifier: (chainListURL?: string) => import("@tanstack/react-query").UseQueryResult<Record<string, {
    name: string;
    chainId: number;
    identifier: `${string}/${string}`;
    rpc: string[];
    explorers: string[];
    parent: {
        type: "L2";
        chain: "mainnet" | "sepolia" | "sepolia-dev-0";
    };
}>, Error>;
