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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 command(*args, **kwargs):
 """Decorator to define a command. The arguments to this decorator are those of the `ArgumentParser <https://docs.python.org/3/library/argparse.html\ #argumentparser-objects>`_ object constructor. """

    def decorator(f):
        if 'description' not in kwargs:
            kwargs['description'] = f.__doc__
        if 'parents' in kwargs:
            if not hasattr(f, '_argnames'):  # pragma: no cover
                f._argnames = []
            for p in kwargs['parents']:
                f._argnames += p._argnames if hasattr(p, '_argnames') else []
            kwargs['parents'] = [p.parser for p in kwargs['parents']]
        f.parser = argparse.ArgumentParser(*args, **kwargs)
        f.climax = True
        for arg in getattr(f, '_arguments', []):
            f.parser.add_argument(*arg[0], **arg[1])

        @wraps(f)
        def wrapper(args=None):
            kwargs = f.parser.parse_args(args)
            return f(**vars(kwargs))

        wrapper.func = f
        return wrapper
    return decorator