docstr: Close any existing connections.
docstr_tok: ["Close","any","existing","connections","."]
code: def disconnect(self):
      """
      Close any existing connections.
      """
      pass
  
file_path: evadb/evadb/third_party/databases/hackernews/hackernews_handler.py
imports: import json
  import pandas
  import requests
  from evadb.third_party.databases.hackernews.table_column_info import HACKERNEWS_COLUMNS
  from evadb.third_party.databases.types import DBHandler, DBHandlerResponse, DBHandlerStatus
label_desc: Use image node_id 5 for calling the HackernewsSearchHandler obj's underlying member method code with example usage: obj.disconnect() without return types