public void send(K key, V value) {
        sendWithReceipt(key, value);
    }
Send a record asynchronously to the configured {@link #topic} without using a producer callback.
<p>
This method exists for backward compatibility reasons and delegates to the newer
{@link #sendWithReceipt(Object, Object)} method that returns a future.
@param key the key for the {@link ProducerRecord}
@param value the value for the {@link ProducerRecord}
connect/runtime/src/main/java/org/apache/kafka/connect/util/KafkaBasedLog.java