class_docstr: This handler handles connection and execution of the Altibase statements.
class_docstr_tok: ["This","handler","handles","connection","and","execution","of","the","Altibase","statements","."]
docstr: Close any existing connections
  Should switch self.is_connected.
docstr_tok: ["Close","any","existing","connections","Should","switch","self.is_connected","."]
code: def disconnect(self):
      """Close any existing connections
      Should switch self.is_connected.
      """
      if self.is_connected is True:
          try:
              self.connection.close()
              self.is_connected = False
          except Exception as e:
              logger.error(
                  f"Error while disconnecting to {self.database}, {e}"
              )
              return False
      return True
  
imports: from collections import OrderedDict
  from typing import Any, Optional
  import jaydebeapi
  from mindsdb_sql import parse_sql
  from mindsdb_sql.parser.ast.base import ASTNode
  import pandas
  from mindsdb.integrations.libs.base import DatabaseHandler
  from mindsdb.integrations.libs.const import HANDLER_CONNECTION_ARG_TYPE
  from mindsdb.integrations.libs.response import HandlerStatusResponse, HandlerResponse, RESPONSE_TYPE
  from mindsdb.utilities import log
label_desc: Use image node_id 3 for calling the AltibaseHandler obj's underlying member method code with example usage: obj.disconnect() and returns: True, False