human
Solve the following python programming problem given the following code:
def _create_cacheable(self) : 
    pending = list () 
    def call(**kwargs) : 
        d = defer.Deferred () 
        watcher = defer.Deferred () 
        pending.append ((d, kwargs, watcher)) 
        return (d, watcher) 
return (pending, self) 

    
    

    Fix the buggy line: return (pending, self)
assistant
#Here is Python code to fix the buggy line: return (pending, self)
.

return (pending, def call()