Function librdkafka_sys::rd_kafka_consume_batch

pub unsafe extern fn rd_kafka_consume_batch(rkt: *mut rd_kafka_topic_t,
                                            partition: int32_t,
                                            timeout_ms: c_int,
                                            rkmessages: *mut *mut rd_kafka_message_t,
                                            rkmessages_size: size_t)
                                            -> ssize_t