code: def test_round_numpy(self):
      # GH#12600
      df = DataFrame([[1.53, 1.36], [0.06, 7.01]])
      out = np.round(df, decimals=0)
      expected = DataFrame([[2.0, 1.0], [0.0, 7.0]])
      tm.assert_frame_equal(out, expected)
  
      msg = "the 'out' parameter is not supported"
      with pytest.raises(ValueError, match=msg):
          np.round(df, decimals=0, out=df)
  
file_path: pandas/pandas/tests/frame/methods/test_round.py
imports: import numpy
  import pytest
  import pandas
  from pandas import DataFrame, Series, date_range
  import pandas._testing
label_desc: Use image node_id 2 for calling the TestDataFrameRound obj's underlying member method code with example usage: obj.test_round_numpy() without return types