import { Chain } from "viem";
export declare const katana: {
    blockExplorers?: {
        [key: string]: {
            name: string;
            url: string;
            apiUrl?: string | undefined;
        };
        default: {
            name: string;
            url: string;
            apiUrl?: string | undefined;
        };
    } | undefined | undefined;
    contracts?: {
        [x: string]: import("viem").ChainContract | {
            [sourceId: number]: import("viem").ChainContract | undefined;
        } | undefined;
        ensRegistry?: import("viem").ChainContract | undefined;
        ensUniversalResolver?: import("viem").ChainContract | undefined;
        multicall3?: import("viem").ChainContract | undefined;
        universalSignatureVerifier?: import("viem").ChainContract | undefined;
    } | undefined;
    id: 0;
    name: "Katana";
    nativeCurrency: {
        readonly decimals: 18;
        readonly name: "ETH";
        readonly symbol: "ETH";
    };
    rpcUrls: {
        readonly default: {
            readonly http: readonly [""];
        };
        readonly public: {
            readonly http: readonly [""];
        };
    };
    sourceId?: number | undefined | undefined;
    testnet?: boolean | undefined | undefined;
    custom?: Record<string, unknown> | undefined;
    fees?: import("viem").ChainFees<undefined> | undefined;
    formatters?: undefined;
    serializers?: import("viem").ChainSerializers<undefined, import("viem").TransactionSerializable> | undefined;
    readonly network: "katana";
};
export declare const DEFAULT_RPC_URLS: Record<number, string>;
export declare const SUPPORTED_CHAINS: Chain[];
export declare const CHAIN_NAMES: Record<number, string>;