code: def test_round_builtin(self):
      # GH#11763
      # Here's the test frame we'll be working with
      df = DataFrame(
          {"col1": [1.123, 2.123, 3.123], "col2": [1.234, 2.234, 3.234]}
      )
  
      # Default round to integer (i.e. decimals=0)
      expected_rounded = DataFrame(
          {"col1": [1.0, 2.0, 3.0], "col2": [1.0, 2.0, 3.0]}
      )
      tm.assert_frame_equal(round(df), expected_rounded)
  
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 6 for calling the TestDataFrameRound obj's underlying member method code with example usage: obj.test_round_builtin() without return types