human
Solve the following python programming problem given the following code:
def cmd(self, _func = _NO_FUNC, name = None, * args, **kwargs) : 
    "Decorator to create a command line subcommand for a function.

        By default, the name of the decorated function is used as the
        name of the subcommand, but this can be overridden by specifying the
        `name` argument. Additional arguments are passed to the subcommand's
        :py:class:`ArgumentParser`.
        " 
    if (_func is not _NO_FUNC) : 
        return self.cmd () (wrapper) 
parser_args = args 
    parser_kwargs = kwargs 
    def wrapper(func) : 
        subcommand = (name if (name is not None) else func.__name__) 
        parser_kwargs.setdefault ('help', '') 
        subparser = self._subparsers.add_parser (subcommand, * parser_args, ** parser_kwargs) 
        for (global_args, global_kwargs) in self._global_args : 
            subparser.add_argument (* global_args, ** global_kwargs) 
for (args, kwargs) in self._pending_args : 
            subparser.add_argument (* args, ** kwargs) 
self._pending_args = [] 
        try : 
            pending_defaults = self._defaults.pop (None) 
except KeyError : 
            pass 
else : 
            self._defaults [func] = pending_defaults 
subparser.set_defaults (_func = func) 
        return func 
return wrapper 

    
    

    Fix the buggy line: return self.cmd () (wrapper)
assistant
#Here is Python program to fix the buggy line: return self.

return self.cmd () (_func)