code: def test_metastepmixin_set_train_should_set_train_to_false():
      p = MetaStep(Pipeline([Identity()]))
  
      p.set_train(False)
  
      assert not p.is_train
      assert not p.wrapped[0].is_train
      assert not p.wrapped.is_train
  
file_path: Neuraxle/testing_neuraxle/test_metastep_mixin.py
imports: import sys
  import typing
  from typing import Generic, TypeVar
  import pytest
  from neuraxle.base import BaseService, MetaStep, NonFittableMixin
  from neuraxle.pipeline import Pipeline
  from neuraxle.union import Identity
  from testing_neuraxle.mocks.step_mocks import SomeMetaStepWithHyperparams
label_desc: Use image node_id 1 for calling a global function with example usage: test_metastepmixin_set_train_should_set_train_to_false() without return types