class_docstr: A class for handling connections and interactions with Slack API.
  Agrs:
      bot_token(str): The bot token for the Slack app.
docstr: Convert the list of channel dictionaries to a format that can be easily used in the data pipeline.
  
  Args:
      channels: A list of channel dictionaries.
  
  Returns:
      A list of channel dictionaries with modified keys and values.
code: def convert_channel_data(self, channels: List[dict]):
      """
      Convert the list of channel dictionaries to a format that can be easily used in the data pipeline.
  
      Args:
          channels: A list of channel dictionaries.
  
      Returns:
          A list of channel dictionaries with modified keys and values.
      """
  
      new_channels = []
      for channel in channels:
          new_channel = {
              "id": channel["id"],
              "name": channel["name"],
              "created": datetime.fromtimestamp(
                  float(channel["created"])
              ),
          }
          new_channels.append(new_channel)
      return new_channels
  
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 10 for calling the SlackHandler obj's underlying member method code with example usage: obj.convert_channel_data(channels) and returns: new_channels