Before revision:  Therefore, there is a need to safeguard the teacher against such privacy threats. We fix the teacher's policy as the context of the demonstrations , which allows for different internal models across the student and the teacher , and contrasts the existing methods.
After revision:  Therefore, we use the framework of differential privacy to develop a mechanism that securely shares the teacher's policy as the context of the demonstrations , which allows for different internal models across the student and the teacher , and contrasts the existing methods.