code: def _default_classification_stream_factory(
      stream_name: str, benchmark: "ClassificationScenario"
  ):
      return ClassificationStream(name=stream_name, benchmark=benchmark)
  
imports: from typing import Callable, TypeVar, Union, Sequence, Optional, Iterable, List, Set, Tuple, Mapping, overload, TYPE_CHECKING
  import warnings
  from avalanche.benchmarks.scenarios.deprecated import AbstractClassTimelineExperience
  from avalanche.benchmarks.scenarios.deprecated.dataset_scenario import ClassesTimelineCLScenario, FactoryBasedStream, TStreamsUserDict
  from avalanche.benchmarks.utils.dataset_utils import manage_advanced_indexing
label_desc: Use image node_id 1 for calling a global function with example usage: _default_classification_stream_factory(stream_name, benchmark) and returns: ClassificationStream