code: def data(data_pd):
      return data_pd["y"].values
  
file_path: statsmodels/statsmodels/tsa/stl/tests/test_mstl.py
imports: from pathlib import Path
  from numpy.testing import assert_allclose, assert_equal
  import pandas
  import pytest
  from statsmodels.tsa.seasonal import MSTL
label_desc: Use image node_id 3 for calling a global function with example usage: data(data_pd) and returns: data_pd