private EndTxnResponse createEndTxnResponse() {
        return new EndTxnResponse(
            new EndTxnResponseData()
                .setErrorCode(Errors.NONE.code())
                .setThrottleTimeMs(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