docstr: Close the underlying socket connection to Kafka and
  clean up system resources
docstr_tok: ["Close","the","underlying","socket","connection","to","Kafka","and","clean","up","system","resources"]
code: def close(self, timeout=10000):
      """
      Close the underlying socket connection to Kafka and
      clean up system resources
      """
  
      self.kafka_meta_client.close(timeout)
  
file_path: cudf/python/custreamz/custreamz/kafka.py
imports: import confluent_kafka
  from cudf_kafka._lib.kafka import KafkaDatasource
  import cudf
label_desc: Use image node_id 4 for calling the CudfKafkaClient obj's underlying member method code with example usage: obj.close(timeout) without return types