code: def setup_class(cls):
      cls._sql_via_http_context = {}
  
file_path: mindsdb/tests/integration_tests/flows/test_ts_predictions.py
imports: import datetime
  import random
  import pytest
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
  from .http_test_helpers import HTTPHelperMixin
label_desc: Use image node_id 1 for calling the TestHTTP obj's underlying member method code with example usage: obj.setup_class(cls) without return types