code: def test_repr_dimensions(self):
      df = DataFrame([[1, 2], [3, 4]])
      with option_context("display.show_dimensions", True):
          assert "2 rows x 2 columns" in repr(df)
  
      with option_context("display.show_dimensions", False):
          assert "2 rows x 2 columns" not in repr(df)
  
      with option_context("display.show_dimensions", "truncate"):
          assert "2 rows x 2 columns" not in repr(df)
  
imports: from datetime import datetime, timedelta
  from io import StringIO
  import numpy
  import pytest
  from pandas._config import using_pyarrow_string_dtype
  from pandas import NA, Categorical, CategoricalIndex, DataFrame, IntervalIndex, MultiIndex, NaT, PeriodIndex, Series, Timestamp, date_range, option_context, period_range
  import pandas._testing
label_desc: Use image node_id 15 for calling the TestDataFrameRepr obj's underlying member method code with example usage: obj.test_repr_dimensions() without return types