code: def test_bool_and_nan_to_float(all_parsers):
      # GH#42808
      parser = all_parsers
      data = """0
  NaN
  True
  False
  """
      result = parser.read_csv(StringIO(data), dtype="float")
      expected = DataFrame.from_dict({"0": [np.nan, 1.0, 0.0]})
      tm.assert_frame_equal(result, expected)
  
imports: from io import StringIO
  import numpy
  import pytest
  from pandas._libs.parsers import STR_NA_VALUES
  from pandas import DataFrame, Index, MultiIndex
  import pandas._testing
label_desc: Use image node_id 29 for calling a global function with example usage: test_bool_and_nan_to_float(all_parsers) without return types