code: def connect(self):
      broker_props = {
          "solace.messaging.transport.host": self.connection_args[
              "host"
          ],
          "solace.messaging.service.vpn-name": self.connection_args.get(
              "vpn-name", "default"
          ),
          "solace.messaging.authentication.scheme.basic.username": self.connection_args.get(
              "username"
          ),
          "solace.messaging.authentication.scheme.basic.password": self.connection_args.get(
              "password"
          ),
      }
  
      self.messaging_service = (
          MessagingService.builder()
          .from_properties(broker_props)
          .with_reconnection_retry_strategy(
              RetryStrategy.parametrized_retry(20, 3)
          )
          .build()
      )
  
      self.messaging_service.connect()
  
      self.direct_publisher = (
          self.messaging_service.create_direct_message_publisher_builder().build()
      )
      self.direct_publisher.start()
  
      # TODO support persistent_publisher ?
  
      self.is_connected = True
      return self.messaging_service
  
imports: import pandas
  from solace.messaging.messaging_service import MessagingService, RetryStrategy
  from solace.messaging.resources.topic_subscription import TopicSubscription
  from solace.messaging.receiver.message_receiver import MessageHandler
  from solace.messaging.resources.topic import Topic
  from solace.messaging.receiver.inbound_message import InboundMessage
  from mindsdb_sql import parse_sql
  from mindsdb_sql.parser import ast
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  from mindsdb.integrations.libs.base import DatabaseHandler
  from mindsdb.integrations.libs.response import HandlerStatusResponse, HandlerResponse
  from mindsdb.utilities import log
label_desc: Use image node_id 2 for calling the SolaceHandler obj's underlying member method code with example usage: obj.connect() and returns: self