https://docs.spring.io/spring-kafka/docs/3.3.3-SNAPSHOT/api/org/springframework/kafka/support/AbstractKafkaHeaderMapper.HeaderMatcher.html
AbstractKafkaHeaderMapper.HeaderMatcher (Spring for Apache Kafka 3.3.3-SNAPSHOT API)
declaration: package: org.springframework.kafka.support, class: AbstractKafkaHeaderMapper, interface: HeaderMatcher
spring for apache kafkasnapshotapi