### Question:
FiscoBcosInstance { public IProducer buildProducer() { return new FiscoBcosBroker4Producer(this.fiscoBcosDelegate); } FiscoBcosInstance(FiscoConfig config); IProducer buildProducer(); IConsumer buildConsumer();  }### Answer:
@Test public void testBuildProducer() throws Exception { WeEvent weEvent = new WeEvent(this.topicName, "hello weevent".getBytes()); SendResult sendResult = this.iProducer.publish(weEvent, this.groupId, this.fiscoConfig.getWeb3sdkTimeout()); Assert.assertEquals(sendResult.getStatus(), SendResult.SendResultStatus.SUCCESS); }