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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 multithreader(args, paths):
 """Execute multiple processes at once."""


    def shellprocess(path):
        """Return a ready-to-use subprocess."""
        import subprocess
        return subprocess.Popen(args + [path],
                                stderr=subprocess.DEVNULL,
                                stdout=subprocess.DEVNULL)

    processes = [shellprocess(path) for path in paths]

    for process in processes:
        process.wait()