def reset_prefix_cache(self):
        """
        Resets the prefix cache for the model.
        """
        url = f'{self.base_url}/reset_prefix_cache/'
        response = self.session.post(url)
        if response.status_code != 200:
            raise Exception(f'Request failed: {response.status_code}, {response.text}')

        Resets the prefix cache for the model.
        
swift/trainers/rlhf_trainer/vllm_client.py