class_docstr: This handler handles connection and execution of the Dremio statements.
docstr: Close any existing connections.
docstr_tok: ["Close","any","existing","connections","."]
code: def disconnect(self):
      """
      Close any existing connections.
      """
  
      self.is_connected = False
      return
  
imports: from typing import Optional
  from collections import OrderedDict
  import json
  import time
  import requests
  import pandas
  from mindsdb_sql import parse_sql
  from mindsdb_sql.render.sqlalchemy_render import SqlalchemyRender
  from mindsdb.integrations.libs.base import DatabaseHandler
  from sqlalchemy_dremio.base import DremioDialect
  from mindsdb_sql.parser.ast.base import ASTNode
  from mindsdb.utilities import log
  from mindsdb.integrations.libs.response import HandlerStatusResponse, HandlerResponse, RESPONSE_TYPE
  from mindsdb.integrations.libs.const import HANDLER_CONNECTION_ARG_TYPE
label_desc: Use image node_id 4 for calling the DremioHandler obj's underlying member method code with example usage: obj.disconnect() without return types