https://developer.android.com/reference/java/util/function/BiConsumer.html?authuser=0
BiConsumer | API reference | Android Developers
api referenceandroiddevelopers
https://kafka.apache.org/24/javadoc/org/apache/kafka/common/KafkaFuture.BiConsumer.html
KafkaFuture.BiConsumer (kafka 2.4.0 API)
kafkaapi