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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _set_program_defaults(cls, programs):
 """Run the external program tester on the required binaries."""

        for program in programs:
            val = getattr(cls, program.__name__) \
                and extern.does_external_program_run(program.__name__,
                                                     Settings.verbose)
            setattr(cls, program.__name__, val)