code: def _check_shifted_by_one(y, y_pred):
      assert_allclose(y + 1, y_pred)
  
imports: import numpy
  import pytest
  from sklearn import datasets
  from sklearn.base import BaseEstimator, TransformerMixin, clone
  from sklearn.compose import TransformedTargetRegressor
  from sklearn.dummy import DummyRegressor
  from sklearn.linear_model import LinearRegression, OrthogonalMatchingPursuit
  from sklearn.pipeline import Pipeline
  from sklearn.preprocessing import FunctionTransformer, StandardScaler
  from sklearn.utils._testing import assert_allclose, assert_no_warnings
label_desc: Use image node_id 4 for calling a global function with example usage: _check_shifted_by_one(y, y_pred) without return types