class_docstr: A class for handling connections and interactions with Slack API.
  Agrs:
      bot_token(str): The bot token for the Slack app.
docstr: Checks the connection by calling auth_test()
code: def check_connection(self):
      """
      Checks the connection by calling auth_test()
      """
      response = StatusResponse(False)
  
      try:
          api = self.connect()
  
          # Call API method to check the connection
          api.auth_test()
  
          # check app_token
          if "app_token" in self.connection_args:
              socket_client = SocketModeClient(
                  app_token=self.connection_args["app_token"],
                  web_client=api,
              )
              socket_client.connect()
              socket_client.disconnect()
  
          response.success = True
      except SlackApiError as e:
          response.error_message = f'Error connecting to Slack Api: {e.response["error"]}. Check token.'
          logger.error(response.error_message)
  
      if response.success is False and self.is_connected is True:
          self.is_connected = False
  
      return response
  
imports: import os
  from datetime import datetime, timezone
  import ast
  from typing import List
  import pandas
  from slack_sdk import WebClient
  from slack_sdk.errors import SlackApiError
  from slack_sdk.web.slack_response import SlackResponse
  from slack_sdk.socket_mode import SocketModeClient
  from slack_sdk.socket_mode.request import SocketModeRequest
  from slack_sdk.socket_mode.response import SocketModeResponse
  from mindsdb.interfaces.chatbot.types import ChatBotMessage
  from mindsdb.utilities import log
  from mindsdb.utilities.config import Config
  from mindsdb_sql.parser import ast
  from mindsdb_sql.parser.ast import ASTNode, Update, Delete
  from mindsdb_sql.planner.utils import query_traversal
  from mindsdb.integrations.libs.api_handler import APIChatHandler, APITable, FuncParser
  from mindsdb.integrations.utilities.sql_utils import extract_comparison_conditions
  from mindsdb.integrations.libs.response import HandlerStatusResponse, HandlerResponse, RESPONSE_TYPE
label_desc: Use image node_id 7 for calling the SlackHandler obj's underlying member method code with example usage: obj.check_connection() and returns: response