ConsumerBuilder extends AbstractReferenceBuilder<ConsumerConfig, ConsumerBuilder> { public ConsumerBuilder client(String client) { this.client = client; return getThis(); }  ConsumerBuilder isDefault(Boolean isDefault); ConsumerBuilder client(String client); ConsumerBuilder threadPool(String threadPool); ConsumerBuilder coreThreads(Integer coreThreads); ConsumerBuilder threads(Integer threads); ConsumerBuilder queues(Integer queues); ConsumerBuilder shareConnections(Integer shareConnections); ConsumerConfig build();  }
@Test void client() { ConsumerBuilder builder = new ConsumerBuilder(); builder.client("client"); Assertions.assertEquals("client", builder.build().getClient()); }