import type { JsonRpcEngineEndCallback, JsonRpcEngineNextCallback } from "@metamask/json-rpc-engine";
import type { PendingJsonRpcResponse } from "@metamask/utils";
import type { InternalMethodsMiddlewareHooks } from "./middleware.cjs";
import type { ScopedJsonRpcRequest } from "../multichain/index.cjs";
/**
 * A mock handler for net_version that always returns a specific
 * hardcoded result.
 *
 * @param request - Incoming JSON-RPC request.
 * @param response - The outgoing JSON-RPC response, modified to return the
 * result.
 * @param _next - The `json-rpc-engine` middleware next handler.
 * @param end - The `json-rpc-engine` middleware end handler.
 * @param hooks - The method hooks.
 * @returns The JSON-RPC response.
 */
export declare function getNetworkVersionHandler(request: ScopedJsonRpcRequest, response: PendingJsonRpcResponse, _next: JsonRpcEngineNextCallback, end: JsonRpcEngineEndCallback, hooks: Pick<InternalMethodsMiddlewareHooks, 'getSimulationState'>): Promise<void>;
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