code: def test_values_with_duplicate_columns(self):
      df = DataFrame(
          [[1, 2.5], [3, 4.5]], index=[1, 2], columns=["x", "x"]
      )
      result = df.values
      expected = np.array([[1, 2.5], [3, 4.5]])
      assert (result == expected).all().all()
  
file_path: pandas/pandas/tests/frame/methods/test_values.py
imports: import numpy
  import pytest
  from pandas import DataFrame, NaT, Series, Timestamp, date_range, period_range
  import pandas._testing
label_desc: Use image node_id 5 for calling the TestDataFrameValues obj's underlying member method code with example usage: obj.test_values_with_duplicate_columns() without return types