### Question:
GenericKafkaSinkProvider implements SinkProvider { @Override public <T> SinkFunction<T> forSpec(EgressSpec<T> spec) { KafkaEgressSpec<T> kafkaEgressSpec = asKafkaEgressSpec(spec); return delegateProvider.forSpec(kafkaEgressSpec); }  @Override SinkFunction<T> forSpec(EgressSpec<T> spec);  }### Answer:
@Test public void exampleUsage() { JsonNode egressDefinition = loadAsJsonFromClassResource(getClass().getClassLoader(), "generic-kafka-egress.yaml"); JsonEgressSpec<?> spec = new JsonEgressSpec<>( KafkaEgressTypes.GENERIC_KAFKA_EGRESS_TYPE, new EgressIdentifier<>("foo", "bar", Any.class), egressDefinition); GenericKafkaSinkProvider provider = new GenericKafkaSinkProvider(); SinkFunction<?> sink = provider.forSpec(spec); assertThat(sink, instanceOf(FlinkKafkaProducer.class)); }