code: def dep_cls_fixture(self):
      class Connectable:
          """a docstring"""
  
          some_member = "foo"
  
      Connectable = _decorate_cls_with_warning(
          Connectable,
          None,
          SADeprecationWarning,
          "a message",
          "2.0",
          "another message",
      )
  
      return Connectable
  
file_path: sqlalchemy/test/base/test_warnings.py
imports: from sqlalchemy import testing
  from sqlalchemy.exc import SADeprecationWarning
  from sqlalchemy.testing import eq_
  from sqlalchemy.testing import expect_deprecated
  from sqlalchemy.testing import fixtures
  from sqlalchemy.util.deprecations import _decorate_cls_with_warning
  from sqlalchemy.util.deprecations import warn_deprecated_limited
  from sqlalchemy.util.langhelpers import _hash_limit_string
label_desc: Use image node_id 1 for calling the ClsWarningTest obj's underlying member method code with example usage: obj.dep_cls_fixture() and returns: Connectable