class_docstr: This handler handles connection and execution of the Dremio statements.
docstr: Returns a list of entity columns.
  Args:
      table_name (str): name of one of tables returned by self.get_tables()
  Returns:
      HandlerResponse
docstr_tok: ["Returns","a","list","of","entity","columns",".","Args",":","table_name","(","str",")",":","name","of","one","of","tables","returned","by","self.get_tables","(",")","Returns",":","HandlerResponse"]
code: def get_columns(self, table_name: str) -> StatusResponse:
      """
      Returns a list of entity columns.
      Args:
          table_name (str): name of one of tables returned by self.get_tables()
      Returns:
          HandlerResponse
      """
  
      query = f"DESCRIBE {table_name}"
      result = self.native_query(query)
      df = result.data_frame
      result.data_frame = df.rename(
          columns={
              "COLUMN_NAME": "column_name",
              "DATA_TYPE": "data_type",
          }
      )
      return result
  
imports: from typing import Optional
  from collections import OrderedDict
  import json
  import time
  import requests
  import pandas
  from mindsdb_sql import parse_sql
  from mindsdb_sql.render.sqlalchemy_render import SqlalchemyRender
  from mindsdb.integrations.libs.base import DatabaseHandler
  from sqlalchemy_dremio.base import DremioDialect
  from mindsdb_sql.parser.ast.base import ASTNode
  from mindsdb.utilities import log
  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 9 for calling the DremioHandler obj's underlying member method code with example usage: obj.get_columns(table_name) and returns: result