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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 _call(callable_obj, arg_names, namespace):
 """Actually calls the callable with the namespace parsed from the command line. Args: callable_obj: a callable object arg_names: name of the function arguments namespace: the namespace object parsed from the command line """

    arguments = {arg_name: getattr(namespace, arg_name)
                 for arg_name in arg_names}
    return callable_obj(**arguments)