class_docstr: This handler handles connection and execution of the Dremio statements.
docstr: Set up the connection required by the handler.
  Returns:
      HandlerStatusResponse
docstr_tok: ["Set","up","the","connection","required","by","the","handler",".","Returns",":","HandlerStatusResponse"]
code: def connect(self) -> dict:
      """
      Set up the connection required by the handler.
      Returns:
          HandlerStatusResponse
      """
  
      headers = {
          "Content-Type": "application/json",
      }
  
      data = (
          "{"
          + f'"userName": "{self.connection_data["username"]}","password": "{self.connection_data["password"]}"'
          + "}"
      )
  
      response = requests.post(
          self.base_url + "/apiv2/login", headers=headers, data=data
      )
  
      return {
          "Authorization": "_dremio" + response.json()["token"],
          "Content-Type": "application/json",
      }
  
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 3 for calling the DremioHandler obj's underlying member method code with example usage: obj.connect() and returns: dict