presto-kafka/src/main/java/io/prestosql/plugin/kafka/KafkaConnectorConfig.java/KafkaConnectorConfig/setNodes
class KafkaConnectorConfig:    @Config("kafka.nodes")
    public KafkaConnectorConfig setNodes(String nodes)
    {
        this.nodes = (nodes == null) ? null : parseNodes(nodes);
        return this;
    }