21     def closed(self):  argument
23     def writable(self):  argument
25     def readable(self):  argument
27     def write(self, s):  argument
29     def read(self, n):  argument
31     def flush(self):  argument
37     def fileno(self):  argument
39     def writable(self):  argument
43     def __init__(self, value):  argument
45     def set(self, value):  argument
47     def __bool__(self):  argument
51     def __init__(self, mutable_flushed, mutable_closed):  argument
55     def close(self):  argument
58     def flush(self):  argument
93     def setUp(self):  argument
98     def tearDown(self):  argument
106     def handleCmd(self, cmd, check=True, collect_result=True):  argument
121     def test_legacy_file_out_script(self):  argument
135     def test_legacy_file_out(self):  argument
142     def test_legacy_file_err_with_get(self):  argument
155     def test_legacy_file_err(self):  argument
163     def test_legacy_file_error(self):  argument
171     def test_sbfile_type_errors(self):  argument
180     def test_sbfile_write_fileno(self):  argument
193     def test_sbfile_write(self):  argument
205     def test_sbfile_read_fileno(self):  argument
217     def test_sbfile_read(self):  argument
231     def test_fileno_out(self):  argument
244     def test_fileno_help(self):  argument
254     def test_help(self):  argument
263     def test_immediate(self):  argument
278     def test_immediate_string(self):  argument
292     def test_immediate_sbfile_string(self):  argument
305     def test_fileno_inout(self):  argument
327     def test_inout(self):  argument
344     def test_binary_inout(self):  argument
361     def test_string_inout(self):  argument
376     def test_bytes_inout(self):  argument
391     def test_fileno_error(self):  argument
408     def test_replace_stdout(self):  argument
417     def test_replace_stdout_with_nonfile(self):  argument
431     def test_sbfile_write_borrowed(self):  argument
445     def test_sbfile_write_forced(self):  argument
464     def test_sbfile_write_forced_borrowed(self):  argument
483     def test_sbfile_write_string(self):  argument
494     def test_string_out(self):  argument
502     def test_string_error(self):  argument
511     def test_sbfile_write_bytes(self):  argument
521     def test_sbfile_read_string(self):  argument
530     def test_sbfile_read_string_one_byte(self):  argument
540     def test_sbfile_read_bytes(self):  argument
549     def test_sbfile_out(self):  argument
559     def test_file_out(self):  argument
568     def test_sbfile_error(self):  argument
579     def test_file_error(self):  argument
589     def test_exceptions(self):  argument
603     def test_exceptions_logged(self):  argument
612     def test_flush(self):  argument
640     def test_fileno_flush(self):  argument
660     def test_close(self):  argument
677     def test_stdout(self):  argument
685     def test_stdout_file(self):  argument
699     def test_identity(self):  argument
752     def test_back_and_forth(self):  argument
770     def test_set_filehandle_none(self):  argument
800     def test_sbstream(self):  argument
825     def test_set_sbstream(self):  argument