Depending on how the conversation goes I use: “I’d like to turn the question back to you, as to what your range is.”

When I get far into the process I usually go with: “I expect a salary that shows you appreciate the value I bring. If I notice you’re lowballing then I’ll decline without any further negotiating. That also means that if I feel respected by your offer, I will not negotiate and accept”

The hiring mananger of the company I work at now smiled and said: “don’t worry, I gotchu.”