code: def __init__(self) -> None:
      self._query_object_factory = create_query_object_factory()
  
file_path: superset/superset/common/query_context_factory.py
imports: from __future__ import annotations
  from typing import Any, TYPE_CHECKING
  from superset import app, db
  from superset.common.chart_data import ChartDataResultFormat, ChartDataResultType
  from superset.common.query_context import QueryContext
  from superset.common.query_object import QueryObject
  from superset.common.query_object_factory import QueryObjectFactory
  from superset.daos.chart import ChartDAO
  from superset.daos.datasource import DatasourceDAO
  from superset.models.slice import Slice
  from superset.utils.core import DatasourceDict, DatasourceType, is_adhoc_column
label_desc: Use image node_id 1 to create a new QueryContextFactory object  with example: obj = QueryContextFactory()