private UpdateRaftVoterResponse createUpdateRaftVoterResponse() {
        return new UpdateRaftVoterResponse(new UpdateRaftVoterResponseData().
            setErrorCode((short) 0));
    }
Check that all error codes in the response get included in {@link AbstractResponse#errorCounts()}.
clients/src/test/java/org/apache/kafka/common/requests/RequestResponseTest.java