code: def test_mask_dtype_bool_conversion(self):
      # GH#3733
      df = DataFrame(
          data=np.random.default_rng(2).standard_normal((100, 50))
      )
      df = df.where(df > 0)  # create nans
      bools = df > 0
      mask = isna(df)
      expected = bools.astype(object).mask(mask)
      result = bools.mask(mask)
      tm.assert_frame_equal(result, expected)
  
file_path: pandas/pandas/tests/frame/indexing/test_mask.py
imports: import numpy
  from pandas import NA, DataFrame, Float64Dtype, Series, StringDtype, Timedelta, isna
  import pandas._testing
label_desc: Use image node_id 6 for calling the TestDataFrameMask obj's underlying member method code with example usage: obj.test_mask_dtype_bool_conversion() without return types