human
Solve the following python programming problem given the following code:
def send(self, request, **kwargs) : 
    if (self._is_cache_disabled or (request.method not in self._cache_allowable_methods)) : 
        response = super (CachedSession, self).send (request, ** kwargs) 
        response.from_cache = False 
        return response 
cache_key = self.cache.create_key (request) 
    def send_request_and_cache_response() : 
        response = super (CachedSession, self).send (request, ** kwargs) 
        if (response.status_code in self._cache_allowable_codes) : 
            self.cache.save_response (cache_key, response) 
response.from_cache = False 
        return response 
(response, timestamp) = self.cache.get_response_and_time (cache_key) 
    if (response is None) : 
        return send_request_and_cache_response () 
if (self._cache_expire_after is not None) : 
        is_expired = ((datetime.utcnow () - timestamp) > self._cache_expire_after) 
        if is_expired : 
            if (not self._return_old_data_on_error) : 
                self.cache.delete (send_request_and_cache_response) 
                return send_request_and_cache_response () 
try : 
                new_response = send_request_and_cache_response () 
except Exception : 
                return response 
else : 
                if (new_response.status_code not in self._cache_allowable_codes) : 
                    return response 
return new_response 
response.from_cache = True 
    response = dispatch_hook ('response', request.hooks, response, ** kwargs) 
    return response 

    
    

    Fix the buggy line: self.cache.delete (send_request_and_cache_response)
assistant
#Here is Python code to fix the buggy line: self.

self.cache.delete (cache_key)