import type { JsonRpcMiddleware } from "@metamask/json-rpc-engine";
import type { Json, JsonRpcParams } from "@metamask/utils";
import type { ConsoleLike } from "../utils.mjs";
/**
 * Create JSON-RPC middleware that logs warnings for deprecated RPC methods.
 *
 * @param log - The logging API to use.
 * @returns The JSON-RPC middleware.
 */
export declare function createRpcWarningMiddleware(log: ConsoleLike): JsonRpcMiddleware<JsonRpcParams, Json>;
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