ShareFetchResponse throttleResponse(int throttleTimeMs) {
        return new ShareFetchResponse(ShareFetchResponse.toMessage(Errors.NONE, throttleTimeMs,
                Collections.emptyIterator(), Collections.emptyList()));
    }
Return an empty throttled response due to quota violation.
@param throttleTimeMs - The time to throttle the response.
@return - An empty throttled response.
core/src/main/java/kafka/server/share/ShareFetchContext.java