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            fd = {fd}

            def func(timeout, repeat, cancel, file, loops):
                for loop in range(loops):
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                    if cancel:
                        faulthandler.cancel_dump_traceback_later()
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            if filename:
                file = open(filename, "wb")
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            import sys

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            filename = {filename!r}
            fd = {fd}

            def func(signum):
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                handler.called = True
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                file = sys.stderr.fileno()
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            if unregister:
                faulthandler.unregister(signum)
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                if file is not None:
                    output = file
                else:
                    output = sys.stderr
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