public void prepareResponse(RequestMatcher matcher, AbstractResponse response) {
        prepareResponse(matcher, response, false);
    }
Prepare a response for a request matching the provided matcher. If the matcher does not
match, {@link KafkaClient#send(ClientRequest, long)} will throw IllegalStateException
@param matcher The matcher to apply
@param response The response body
clients/src/test/java/org/apache/kafka/clients/MockClient.java