export declare const btr: {
    blockExplorers: {
        readonly default: {
            readonly name: "Bitlayer(BTR) Scan";
            readonly url: "https://www.btrscan.com";
        };
    };
    blockTime?: number | undefined | undefined;
    contracts?: {
        [x: string]: import("../../index.js").ChainContract | {
            [sourceId: number]: import("../../index.js").ChainContract | undefined;
        } | undefined;
        ensRegistry?: import("../../index.js").ChainContract | undefined;
        ensUniversalResolver?: import("../../index.js").ChainContract | undefined;
        multicall3?: import("../../index.js").ChainContract | undefined;
        erc6492Verifier?: import("../../index.js").ChainContract | undefined;
    } | undefined;
    ensTlds?: readonly string[] | undefined;
    id: 200901;
    name: "Bitlayer";
    nativeCurrency: {
        readonly name: "Bitcoin";
        readonly symbol: "BTC";
        readonly decimals: 18;
    };
    experimental_preconfirmationTime?: number | undefined | undefined;
    rpcUrls: {
        readonly default: {
            readonly http: readonly ["https://rpc.bitlayer.org", "https://rpc.bitlayer-rpc.com"];
            readonly webSocket: readonly ["wss://ws.bitlayer.org", "wss://ws.bitlayer-rpc.com"];
        };
    };
    sourceId?: number | undefined | undefined;
    testnet?: boolean | undefined | undefined;
    custom?: Record<string, unknown> | undefined;
    extendSchema?: Record<string, unknown> | undefined;
    fees?: import("../../index.js").ChainFees<undefined> | undefined;
    formatters?: undefined;
    prepareTransactionRequest?: ((args: import("../../index.js").PrepareTransactionRequestParameters, options: {
        phase: "beforeFillTransaction" | "beforeFillParameters" | "afterFillParameters";
    }) => Promise<import("../../index.js").PrepareTransactionRequestParameters>) | [fn: ((args: import("../../index.js").PrepareTransactionRequestParameters, options: {
        phase: "beforeFillTransaction" | "beforeFillParameters" | "afterFillParameters";
    }) => Promise<import("../../index.js").PrepareTransactionRequestParameters>) | undefined, options: {
        runAt: readonly ("beforeFillTransaction" | "beforeFillParameters" | "afterFillParameters")[];
    }] | undefined;
    serializers?: import("../../index.js").ChainSerializers<undefined, import("../../index.js").TransactionSerializable> | undefined;
    verifyHash?: ((client: import("../../index.js").Client, parameters: import("../../index.js").VerifyHashActionParameters) => Promise<import("../../index.js").VerifyHashActionReturnType>) | undefined;
};
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