class_docstr: This handler handles connection and execution of the Solr SQL statements.
docstr: Set up the connection required by the handler.
  Returns:
      HandlerStatusResponse
docstr_tok: ["Set","up","the","connection","required","by","the","handler",".","Returns",":","HandlerStatusResponse"]
code: def connect(self):
      """
      Set up the connection required by the handler.
      Returns:
          HandlerStatusResponse
      """
      if self.is_connected is True:
          return self.connection
  
      user = self.connection_data.get("user", None)
      password = self.connection_data.get("password", None)
      config = {
          "user": user,
          "password": password,
          "hosts": [
              (
                  self.connection_data.get("host"),
                  self.connection_data.get("port"),
              )
          ],
      }
      connection = aerospike.client(config).connect()
      self.is_connected = True
      self.connection = connection.connect()
      return self.connection
  
imports: from typing import Optional
  from collections import OrderedDict
  import pandas
  import aerospike
  import re
  import duckdb
  from mindsdb_sql import parse_sql
  from mindsdb_sql.parser.ast.base import ASTNode
  from mindsdb.integrations.libs.base import DatabaseHandler
  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 3 for calling the AerospikeHandler obj's underlying member method code with example usage: obj.connect() and returns: self, self