human
Solve the following python programming problem given the following code:
def _with_legacy_names(translations) : 
    def decorate(fn) : 
        spec = inspect_getfullargspec (fn) 
        metadata = dict (target = 'target', fn = 'fn') 
        metadata.update (format_argspec_plus (spec, grouped = False)) 
        has_keywords = bool (spec [2]) 
        if (not has_keywords) : 
            metadata ['args'] += ', **kw' 
            metadata ['apply_kw'] += ', **kw' 
def go(* arg, **kw) : 
            names = set (kw).difference (spec [0]) 
            for (oldname, newname) in translations : 
                if (oldname in kw) : 
                    kw [newname] = kw.pop (oldname) 
                    names.discard (oldname) 
                    warnings.warn (("Argument '%s' is now named '%s' for function '%s'" % (oldname, newname, fn.__name__))) 
if ((not has_keywords) and names) : 
                raise TypeError (('Unknown arguments: %s' % ', '.join (names))) 
return fn (* arg, ** kw) 
code = ('lambda %(args)s: %(target)s(%(apply_kw)s)' % metadata) 
        decorated = eval (code, { 
            'target' : go, 
}) 
        decorated.__defaults__ = getattr (fn, '__func__', fn).__defaults__ 
        update_wrapper (decorated, fn) 
        if hasattr (decorated, '__wrapped__') : 
            del decorated.__wrapped__ 
return decorated 
return translations 

    
    

    Fix the buggy line: return translations
assistant
#Here is Python code to fix the buggy line: return translations
.

return def decorate(