class_docstr: Manages SELECT and INSERT operations for Rocket Chat messages.
class_docstr_tok: ["Manages","SELECT","and","INSERT","operations","for","Rocket","Chat","messages","."]
docstr: Gets all columns to be returned in pandas DataFrame responses
docstr_tok: ["Gets","all","columns","to","be","returned","in","pandas","DataFrame","responses"]
code: def get_columns(self):
      """Gets all columns to be returned in pandas DataFrame responses"""
      return [
          "id",
          "room_id",
          "bot_id",
          "text",
          "username",
          "name",
          "sent_at",
      ]
  
imports: from typing import List
  import pandas
  from mindsdb.integrations.libs.api_handler import APITable
  from mindsdb.integrations.utilities.sql_utils import conditions_to_filter, project_dataframe, sort_dataframe
  from mindsdb_sql.parser import ast
label_desc: Use image node_id 3 for calling the ChannelMessagesTable obj's underlying member method code with example usage: obj.get_columns() and returns: list