import type { JsonRpcEngineEndCallback, JsonRpcEngineNextCallback } from "@metamask/json-rpc-engine";
import { type Hex, type JsonRpcRequest, type PendingJsonRpcResponse } from "@metamask/utils";
export type SwitchEthereumChainHooks = {
    setCurrentChain: (chain: Hex) => null;
};
/**
 * A mock handler for the `wallet_switchEthereumChain` method that always
 * returns `null`.
 *
 * @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 response.
 */
export declare function getSwitchEthereumChainHandler(request: JsonRpcRequest, response: PendingJsonRpcResponse, _next: JsonRpcEngineNextCallback, end: JsonRpcEngineEndCallback, hooks: SwitchEthereumChainHooks): Promise<void>;
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