code: def test_instantiate_two_without_name(self, teardown):
      x0 = Input()
      x1 = Input()
  
      assert x0.name == "InputStep_0"
      assert x1.name == "InputStep_1"
  
imports: from contextlib import contextmanager
  from functools import partial
  import pytest
  from sklearn.base import TransformerMixin, BaseEstimator
  from baikal import Input, Step, set_config
  from baikal._core.data_placeholder import DataPlaceholder
  from baikal._core.step import InputStep
  from tests.helpers.fixtures import teardown
  from tests.helpers.dummy_steps import DummyMIMO, DummySISO, DummyEstimator
  from tests.helpers.sklearn_steps import LogisticRegression, PCA
label_desc: Use image node_id 2 for calling the TestInput obj's underlying member method code with example usage: obj.test_instantiate_two_without_name(teardown) without return types