code: def setup_class(cls):
      cls._sql_via_http_context = {}
  
imports: from pathlib import Path
  import json
  import requests
  import pandas
  import pytest
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  from .conftest import make_test_csv
  from .http_test_helpers import HTTPHelperMixin
label_desc: Use image node_id 2 for calling the TestHTTP obj's underlying member method code with example usage: obj.setup_class(cls) without return types